diff --git a/3.11/Dockerfile b/3.11/Dockerfile
index dbb22d9..31df28d 100644
--- a/3.11/Dockerfile
+++ b/3.11/Dockerfile
@@ -90,8 +90,8 @@ ENV GPG_KEYS \
 # Berenguer Blasi (Code Signing Key) <bereng@apache.org>
 	CEC5C50B9C629EF0F5AB2706650B72EB14CCD622
 
-ENV CASSANDRA_VERSION 3.11.14
-ENV CASSANDRA_SHA512 04ee6fa283079e58c9e8eb36bafa8a56ac1373a8845cad55e6f23e508f8bb19955b7bc70ad571ee351bb580c87181c521beeaadce14adbd9d9c87e86c2d15ec2
+ENV CASSANDRA_VERSION 3.11.15
+ENV CASSANDRA_SHA512 a8de34b57d38a425a9308bee185f1731f46a2977666952ac0ba811ffbb9cbeacb9b08aaf1012951195ba6f94983323afeaf6e51f0f7af5fea34c6d8ac87ca699
 
 RUN set -eux; \
 	savedAptMark="$(apt-mark showmanual)"; \
diff --git a/versions.json b/versions.json
index 96c7148..bcdce22 100644
--- a/versions.json
+++ b/versions.json
@@ -6,8 +6,8 @@
   },
   "3.11": {
     "java": "8",
-    "sha512": "04ee6fa283079e58c9e8eb36bafa8a56ac1373a8845cad55e6f23e508f8bb19955b7bc70ad571ee351bb580c87181c521beeaadce14adbd9d9c87e86c2d15ec2",
-    "version": "3.11.14"
+    "sha512": "a8de34b57d38a425a9308bee185f1731f46a2977666952ac0ba811ffbb9cbeacb9b08aaf1012951195ba6f94983323afeaf6e51f0f7af5fea34c6d8ac87ca699",
+    "version": "3.11.15"
   },
   "4.0": {
     "java": "11",