diff --git a/update.sh b/update.sh
index 9706f78b5631b79cf958cea5a9320b8419bc6806..331bda8a220b79196cbbffc5b909852e59e70199 100755
--- a/update.sh
+++ b/update.sh
@@ -55,8 +55,6 @@ update_version()
 			sed -e '/collation-server/d' docker.cnf > "$dir/docker.cnf"
 			if [[ $version != 11.4 ]]; then
 				sed -i -e '/character-set-collations/d' "$dir/docker.cnf"
-			fi
-			if [[ $version != 11.[45] ]]; then
 				sed -i -e '/character-set/d' "$dir/docker.cnf"
 			fi
 		fi
diff --git a/versions.json b/versions.json
index c25e533193a775d9772d5fe8b229704bcfa80c31..5facecf5c4d0402127e97bbee3a83a17e18e824f 100644
--- a/versions.json
+++ b/versions.json
@@ -110,61 +110,5 @@
       "ppc64le",
       "s390x"
     ]
-  },
-  "11.5": {
-    "milestone": "11.5",
-    "version": "11.5.2",
-    "fullVersion": "1:11.5.2+maria~ubu2404",
-    "releaseStatus": "Stable",
-    "supportType": "Short Term Support",
-    "base": "ubuntu:noble",
-    "arches": [
-      "amd64",
-      "arm64v8",
-      "ppc64le",
-      "s390x"
-    ]
-  },
-  "11.5-ubi": {
-    "milestone": "11.5",
-    "version": "11.5.2",
-    "fullVersion": "11.5.2",
-    "releaseStatus": "Stable",
-    "supportType": "Short Term Support",
-    "base": "ubi9",
-    "arches": [
-      "amd64",
-      "arm64v8",
-      "ppc64le",
-      "s390x"
-    ]
-  },
-  "11.6": {
-    "milestone": "11.6",
-    "version": "11.6.1",
-    "fullVersion": "1:11.6.1+maria~ubu2404",
-    "releaseStatus": "RC",
-    "supportType": "Short Term Support",
-    "base": "ubuntu:noble",
-    "arches": [
-      "amd64",
-      "arm64v8",
-      "ppc64le",
-      "s390x"
-    ]
-  },
-  "11.6-ubi": {
-    "milestone": "11.6",
-    "version": "11.6.1",
-    "fullVersion": "11.6.1",
-    "releaseStatus": "RC",
-    "supportType": "Short Term Support",
-    "base": "ubi9",
-    "arches": [
-      "amd64",
-      "arm64v8",
-      "ppc64le",
-      "s390x"
-    ]
   }
 }