diff --git a/Dockerfile b/Dockerfile
index b1fab501fa9..92029011aba 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM amazoncorretto:21
+FROM amazoncorretto:21.0.6-al2023
 
 WORKDIR /app/prebid-server
 
diff --git a/Dockerfile-modules b/Dockerfile-modules
index d3338d2c376..aaa636e9d3c 100644
--- a/Dockerfile-modules
+++ b/Dockerfile-modules
@@ -1,4 +1,4 @@
-FROM amazoncorretto:21
+FROM amazoncorretto:21.0.6-al2023
 
 WORKDIR /app/prebid-server