diff --git a/4.0/Dockerfile b/4.0/Dockerfile
index 8d7129b..757b292 100644
--- a/4.0/Dockerfile
+++ b/4.0/Dockerfile
@@ -90,8 +90,8 @@ ENV GPG_KEYS \
 # Berenguer Blasi (Code Signing Key) <bereng@apache.org>
 	CEC5C50B9C629EF0F5AB2706650B72EB14CCD622
 
-ENV CASSANDRA_VERSION 4.0.8
-ENV CASSANDRA_SHA512 6cb37f7266f446a23f32d73a128f7e96056b8829cbe653b1ecb4683fd4dab8f0d7a13357f7ee4ee2d6cc77dcbd97ca3dcce017334b9d129b01ca2b0660bc7ee6
+ENV CASSANDRA_VERSION 4.0.9
+ENV CASSANDRA_SHA512 94ec77fec09ed69912dd1da98f39e5e5d68aba8003180b62a0b0599cf6bae895a0944c9e0ac2b966d4e7658c188782025ab82f32e9f3139c5090d28be470e0a2
 
 RUN set -eux; \
 	savedAptMark="$(apt-mark showmanual)"; \
diff --git a/versions.json b/versions.json
index 1a04992..96c7148 100644
--- a/versions.json
+++ b/versions.json
@@ -11,8 +11,8 @@
   },
   "4.0": {
     "java": "11",
-    "sha512": "6cb37f7266f446a23f32d73a128f7e96056b8829cbe653b1ecb4683fd4dab8f0d7a13357f7ee4ee2d6cc77dcbd97ca3dcce017334b9d129b01ca2b0660bc7ee6",
-    "version": "4.0.8"
+    "sha512": "94ec77fec09ed69912dd1da98f39e5e5d68aba8003180b62a0b0599cf6bae895a0944c9e0ac2b966d4e7658c188782025ab82f32e9f3139c5090d28be470e0a2",
+    "version": "4.0.9"
   },
   "4.1": {
     "java": "11",