diff --git a/apache/Dockerfile b/apache/Dockerfile
index 1a39791..d1e694d 100644
--- a/apache/Dockerfile
+++ b/apache/Dockerfile
@@ -1,5 +1,5 @@
 # Latest version of PHP base image: https://hub.docker.com/_/php?tab=tags
-FROM php:8.3.20-apache-bookworm AS runtime
+FROM php:8.3.21-apache-bookworm AS runtime
 
 ARG UNIQUE_ID_FOR_CACHEFROM=runtime
 
diff --git a/fpm/Dockerfile b/fpm/Dockerfile
index deae20f..5be2876 100644
--- a/fpm/Dockerfile
+++ b/fpm/Dockerfile
@@ -1,5 +1,5 @@
 # Latest version of PHP base image: https://hub.docker.com/_/php?tab=tags
-FROM php:8.3.20-fpm-bookworm AS runtime
+FROM php:8.3.21-fpm-bookworm AS runtime
 
 ARG UNIQUE_ID_FOR_CACHEFROM=runtime