diff --git a/10/alpine/Dockerfile b/10/alpine/Dockerfile
index ee4bfd7b3b..e8261cfc55 100644
--- a/10/alpine/Dockerfile
+++ b/10/alpine/Dockerfile
@@ -123,8 +123,6 @@ RUN set -eux; \
 		$runDeps \
 		bash \
 		su-exec \
-# tzdata is optional, but only adds around 1Mb to image size and is recommended by Django documentation:
-# https://docs.djangoproject.com/en/1.10/ref/databases/#optimizing-postgresql-s-configuration
 		tzdata \
 		zstd \
 	; \
diff --git a/11/alpine/Dockerfile b/11/alpine/Dockerfile
index 81a4b09577..ffc0c64279 100644
--- a/11/alpine/Dockerfile
+++ b/11/alpine/Dockerfile
@@ -125,8 +125,6 @@ RUN set -eux; \
 		$runDeps \
 		bash \
 		su-exec \
-# tzdata is optional, but only adds around 1Mb to image size and is recommended by Django documentation:
-# https://docs.djangoproject.com/en/1.10/ref/databases/#optimizing-postgresql-s-configuration
 		tzdata \
 		zstd \
 	; \
diff --git a/12/alpine/Dockerfile b/12/alpine/Dockerfile
index 2e9df96b06..542aaea318 100644
--- a/12/alpine/Dockerfile
+++ b/12/alpine/Dockerfile
@@ -125,8 +125,6 @@ RUN set -eux; \
 		$runDeps \
 		bash \
 		su-exec \
-# tzdata is optional, but only adds around 1Mb to image size and is recommended by Django documentation:
-# https://docs.djangoproject.com/en/1.10/ref/databases/#optimizing-postgresql-s-configuration
 		tzdata \
 		zstd \
 	; \
diff --git a/13/alpine/Dockerfile b/13/alpine/Dockerfile
index b3efb938ae..8321cc5df9 100644
--- a/13/alpine/Dockerfile
+++ b/13/alpine/Dockerfile
@@ -125,8 +125,6 @@ RUN set -eux; \
 		$runDeps \
 		bash \
 		su-exec \
-# tzdata is optional, but only adds around 1Mb to image size and is recommended by Django documentation:
-# https://docs.djangoproject.com/en/1.10/ref/databases/#optimizing-postgresql-s-configuration
 		tzdata \
 		zstd \
 	; \
diff --git a/14/alpine/Dockerfile b/14/alpine/Dockerfile
index d788983d82..14e97e8b6e 100644
--- a/14/alpine/Dockerfile
+++ b/14/alpine/Dockerfile
@@ -128,8 +128,6 @@ RUN set -eux; \
 		$runDeps \
 		bash \
 		su-exec \
-# tzdata is optional, but only adds around 1Mb to image size and is recommended by Django documentation:
-# https://docs.djangoproject.com/en/1.10/ref/databases/#optimizing-postgresql-s-configuration
 		tzdata \
 		zstd \
 	; \
diff --git a/Dockerfile-alpine.template b/Dockerfile-alpine.template
index f71ea8a8fe..87a8eaf535 100644
--- a/Dockerfile-alpine.template
+++ b/Dockerfile-alpine.template
@@ -130,8 +130,6 @@ RUN set -eux; \
 		$runDeps \
 		bash \
 		su-exec \
-# tzdata is optional, but only adds around 1Mb to image size and is recommended by Django documentation:
-# https://docs.djangoproject.com/en/1.10/ref/databases/#optimizing-postgresql-s-configuration
 		tzdata \
 		zstd \
 	; \