diff --git a/4/Dockerfile b/4/Dockerfile
index 89ed7235..2d2dba7f 100644
--- a/4/Dockerfile
+++ b/4/Dockerfile
@@ -17,7 +17,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done
 
 ENV NODE_VERSION 4.8.7
@@ -48,7 +49,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz" \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz.asc" \
diff --git a/4/alpine/Dockerfile b/4/alpine/Dockerfile
index 4664a004..43bb7cf2 100644
--- a/4/alpine/Dockerfile
+++ b/4/alpine/Dockerfile
@@ -29,7 +29,8 @@ RUN addgroup -g 1000 node \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
     && curl -SLO "https://nodejs.org/dist/v$NODE_VERSION/node-v$NODE_VERSION.tar.xz" \
     && curl -SLO --compressed "https://nodejs.org/dist/v$NODE_VERSION/SHASUMS256.txt.asc" \
@@ -53,7 +54,8 @@ RUN apk add --no-cache --virtual .build-deps-yarn curl gnupg tar \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz" \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz.asc" \
diff --git a/4/slim/Dockerfile b/4/slim/Dockerfile
index c710b742..a429690e 100644
--- a/4/slim/Dockerfile
+++ b/4/slim/Dockerfile
@@ -17,7 +17,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done
 
 ENV NODE_VERSION 4.8.7
@@ -53,7 +54,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz" \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz.asc" \
diff --git a/4/stretch/Dockerfile b/4/stretch/Dockerfile
index 0bec4679..f782a07f 100644
--- a/4/stretch/Dockerfile
+++ b/4/stretch/Dockerfile
@@ -17,7 +17,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done
 
 ENV NODE_VERSION 4.8.7
@@ -48,7 +49,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz" \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz.asc" \
diff --git a/4/wheezy/Dockerfile b/4/wheezy/Dockerfile
index dfb50c5d..46697073 100644
--- a/4/wheezy/Dockerfile
+++ b/4/wheezy/Dockerfile
@@ -17,7 +17,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done
 
 ENV NODE_VERSION 4.8.7
@@ -44,7 +45,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz" \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz.asc" \
diff --git a/6/Dockerfile b/6/Dockerfile
index 418e6046..fc4febd2 100644
--- a/6/Dockerfile
+++ b/6/Dockerfile
@@ -17,7 +17,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done
 
 ENV NODE_VERSION 6.12.3
@@ -48,7 +49,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz" \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz.asc" \
diff --git a/6/alpine/Dockerfile b/6/alpine/Dockerfile
index 05ae4502..4d70b1c1 100644
--- a/6/alpine/Dockerfile
+++ b/6/alpine/Dockerfile
@@ -29,7 +29,8 @@ RUN addgroup -g 1000 node \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
     && curl -SLO "https://nodejs.org/dist/v$NODE_VERSION/node-v$NODE_VERSION.tar.xz" \
     && curl -SLO --compressed "https://nodejs.org/dist/v$NODE_VERSION/SHASUMS256.txt.asc" \
@@ -53,7 +54,8 @@ RUN apk add --no-cache --virtual .build-deps-yarn curl gnupg tar \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz" \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz.asc" \
diff --git a/6/slim/Dockerfile b/6/slim/Dockerfile
index 0d3855d9..e9f1c266 100644
--- a/6/slim/Dockerfile
+++ b/6/slim/Dockerfile
@@ -17,7 +17,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done
 
 ENV NODE_VERSION 6.12.3
@@ -53,7 +54,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz" \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz.asc" \
diff --git a/6/stretch/Dockerfile b/6/stretch/Dockerfile
index d232da45..6ae07959 100644
--- a/6/stretch/Dockerfile
+++ b/6/stretch/Dockerfile
@@ -17,7 +17,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done
 
 ENV NODE_VERSION 6.12.3
@@ -48,7 +49,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz" \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz.asc" \
diff --git a/6/wheezy/Dockerfile b/6/wheezy/Dockerfile
index 307a0561..3fb1436c 100644
--- a/6/wheezy/Dockerfile
+++ b/6/wheezy/Dockerfile
@@ -17,7 +17,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done
 
 ENV NODE_VERSION 6.12.3
@@ -44,7 +45,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz" \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz.asc" \
diff --git a/8/Dockerfile b/8/Dockerfile
index 8e17e1c2..f3368171 100644
--- a/8/Dockerfile
+++ b/8/Dockerfile
@@ -17,7 +17,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done
 
 ENV NODE_VERSION 8.9.4
@@ -48,7 +49,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz" \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz.asc" \
diff --git a/8/alpine/Dockerfile b/8/alpine/Dockerfile
index 0831a59b..74c82038 100644
--- a/8/alpine/Dockerfile
+++ b/8/alpine/Dockerfile
@@ -29,7 +29,8 @@ RUN addgroup -g 1000 node \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
     && curl -SLO "https://nodejs.org/dist/v$NODE_VERSION/node-v$NODE_VERSION.tar.xz" \
     && curl -SLO --compressed "https://nodejs.org/dist/v$NODE_VERSION/SHASUMS256.txt.asc" \
@@ -53,7 +54,8 @@ RUN apk add --no-cache --virtual .build-deps-yarn curl gnupg tar \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz" \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz.asc" \
diff --git a/8/slim/Dockerfile b/8/slim/Dockerfile
index fba9e719..b897ffce 100644
--- a/8/slim/Dockerfile
+++ b/8/slim/Dockerfile
@@ -53,7 +53,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz" \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz.asc" \
diff --git a/8/stretch/Dockerfile b/8/stretch/Dockerfile
index 00b16c51..2b167e82 100644
--- a/8/stretch/Dockerfile
+++ b/8/stretch/Dockerfile
@@ -17,7 +17,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done
 
 ENV NODE_VERSION 8.9.4
@@ -48,7 +49,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz" \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz.asc" \
diff --git a/8/wheezy/Dockerfile b/8/wheezy/Dockerfile
index 22bb0cef..24fd7aa8 100644
--- a/8/wheezy/Dockerfile
+++ b/8/wheezy/Dockerfile
@@ -17,7 +17,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done
 
 ENV NODE_VERSION 8.9.4
@@ -44,7 +45,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz" \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz.asc" \
diff --git a/9/Dockerfile b/9/Dockerfile
index 444d5f17..fdabed53 100644
--- a/9/Dockerfile
+++ b/9/Dockerfile
@@ -17,7 +17,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done
 
 ENV NODE_VERSION 9.5.0
@@ -48,7 +49,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz" \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz.asc" \
diff --git a/9/alpine/Dockerfile b/9/alpine/Dockerfile
index dcd2242e..e76cebfc 100644
--- a/9/alpine/Dockerfile
+++ b/9/alpine/Dockerfile
@@ -29,7 +29,8 @@ RUN addgroup -g 1000 node \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
     && curl -SLO "https://nodejs.org/dist/v$NODE_VERSION/node-v$NODE_VERSION.tar.xz" \
     && curl -SLO --compressed "https://nodejs.org/dist/v$NODE_VERSION/SHASUMS256.txt.asc" \
@@ -53,7 +54,8 @@ RUN apk add --no-cache --virtual .build-deps-yarn curl gnupg tar \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz" \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz.asc" \
diff --git a/9/slim/Dockerfile b/9/slim/Dockerfile
index 2a5aac4d..1a621d3e 100644
--- a/9/slim/Dockerfile
+++ b/9/slim/Dockerfile
@@ -17,7 +17,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done
 
 ENV NODE_VERSION 9.5.0
@@ -53,7 +54,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz" \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz.asc" \
diff --git a/9/stretch/Dockerfile b/9/stretch/Dockerfile
index 1bfa5dcd..9e3338dd 100644
--- a/9/stretch/Dockerfile
+++ b/9/stretch/Dockerfile
@@ -17,7 +17,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done
 
 ENV NODE_VERSION 9.5.0
@@ -48,7 +49,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz" \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz.asc" \
diff --git a/9/wheezy/Dockerfile b/9/wheezy/Dockerfile
index 03e77ccb..bdcf4f2a 100644
--- a/9/wheezy/Dockerfile
+++ b/9/wheezy/Dockerfile
@@ -17,7 +17,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done
 
 ENV NODE_VERSION 9.5.0
@@ -44,7 +45,8 @@ RUN set -ex \
   ; do \
     gpg --keyserver hkp://pgp.mit.edu:80 --recv-keys "$key" || \
     gpg --keyserver hkp://keyserver.pgp.com:80 --recv-keys "$key" || \
-    gpg --keyserver hkp://ha.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
+    gpg --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys "$key" || \
+    gpg --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys "$key" ; \
   done \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz" \
   && curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz.asc" \