diff --git a/attribute-endpoints-provider/pom.xml b/attribute-endpoints-provider/pom.xml
index a74d769..d3b3b2d 100644
--- a/attribute-endpoints-provider/pom.xml
+++ b/attribute-endpoints-provider/pom.xml
@@ -17,7 +17,7 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <maven.compiler.source>17</maven.compiler.source>
     <maven.compiler.target>17</maven.compiler.target>
-    <keycloak.version>26.5.7</keycloak.version>
+    <keycloak.version>26.4.2</keycloak.version>
   </properties>
 
   <dependencies>
diff --git a/compose.yaml b/compose.yaml
index 863d181..6acf6dc 100644
--- a/compose.yaml
+++ b/compose.yaml
@@ -1,6 +1,6 @@
 services:
   keycloak:
-    image: quay.io/keycloak/keycloak:26.5.7
+    image: quay.io/keycloak/keycloak:26.5.3
     pull_policy: always
     command: "start-dev --features=declarative-ui"
     environment:
diff --git a/renovate.json b/renovate.json
index 28e16cb..cf7e391 100644
--- a/renovate.json
+++ b/renovate.json
@@ -8,17 +8,15 @@
     {
       "groupName": "maven plugins",
       "groupSlug": "maven-plugins",
-      "matchPackageNames": [
-        "/org\.apache\.maven\.plugins\.*/"
-      ]
+      "matchPackagePatterns": [ "org\\.apache\\.maven\\.plugins\\.*" ]
     },
     // Group Keycloak package updates.
     {
       "groupName": "Keycloak packages",
       "groupSlug": "keycloak-packages",
-      "matchPackageNames": [
-        "/quay\.io/keycloak/keycloak/",
-        "/org\.keycloak:keycloak-parent/"
+      "matchPackagePatterns": [
+        "quay\\.io\/keycloak\/keycloak",
+        "org\\.keycloak:keycloak-parent"
       ]
     }
   ]