diff --git a/latest/Dockerfile b/latest/Dockerfile
index 198ec3f..714df7f 100644
--- a/latest/Dockerfile
+++ b/latest/Dockerfile
@@ -78,7 +78,6 @@ RUN set -eux ; \
     --version=${COMPOSER_VERSION} \
   ; \
   composer --ansi --version --no-interaction ; \
-  composer diagnose ; \
   rm -f /tmp/installer.php ; \
   find /tmp -type d -exec chmod -v 1777 {} +
 
diff --git a/legacy/Dockerfile b/legacy/Dockerfile
index 64ffa29..e76f282 100644
--- a/legacy/Dockerfile
+++ b/legacy/Dockerfile
@@ -78,7 +78,6 @@ RUN set -eux ; \
     --version=${COMPOSER_VERSION} \
   ; \
   composer --ansi --version --no-interaction ; \
-  composer diagnose ; \
   rm -f /tmp/installer.php ; \
   find /tmp -type d -exec chmod -v 1777 {} +
 
diff --git a/lts/Dockerfile b/lts/Dockerfile
index f1086b5..5811351 100644
--- a/lts/Dockerfile
+++ b/lts/Dockerfile
@@ -78,7 +78,6 @@ RUN set -eux ; \
     --version=${COMPOSER_VERSION} \
   ; \
   composer --ansi --version --no-interaction ; \
-  composer diagnose ; \
   rm -f /tmp/installer.php ; \
   find /tmp -type d -exec chmod -v 1777 {} +