diff --git a/Dockerfile.in b/Dockerfile.in
index 59c2061..ed16d31 100644
--- a/Dockerfile.in
+++ b/Dockerfile.in
@@ -15,6 +15,7 @@
 FROM {ARG_FROM}
 
 RUN apt-get update \
+    && apt-get -y upgrade \
     && apt-get -y install \
         ca-certificates \
         coreutils \
diff --git a/Makefile b/Makefile
index 08d7209..9927285 100644
--- a/Makefile
+++ b/Makefile
@@ -41,7 +41,7 @@ BASEIMAGE ?= k8s.gcr.io/debian-base:v2.0.0
 IMAGE := $(REGISTRY)/$(BIN)
 TAG := $(VERSION)__$(OS)_$(ARCH)
 
-BUILD_IMAGE ?= golang:1.13-alpine
+BUILD_IMAGE ?= golang:1.14-alpine
 
 # If you want to build all binaries, see the 'all-build' rule.
 # If you want to build all containers, see the 'all-container' rule.