diff --git a/pom.xml b/pom.xml
index b15adc3f5a19d9253315dc20842fe7a843e4fbaf..5bc0b85fb1d1ae14ca7aa4db7f331b014c5327e7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -28,10 +28,10 @@
 		<spring-boot.build-image.imageName>docker.ozg-sh.de/ozg-operator:build-latest</spring-boot.build-image.imageName>
 		
 		<mapstruct.version>1.5.5.Final</mapstruct.version>
-		<keycloak-adapter.version>20.0.5</keycloak-adapter.version>
+		<keycloak-adapter.version>21.1.1</keycloak-adapter.version>
 		
-		<resteasy-legacy.version>6.2.4.Final</resteasy-legacy.version>
-		<resteasy.version>6.2.4.Final</resteasy.version>
+		<resteasy-legacy.version>5.0.7.Final</resteasy-legacy.version>
+		<resteasy.version>5.0.7.Final</resteasy.version>
         <resteasy.undertow.version>${resteasy.version}</resteasy.undertow.version>
 	</properties>
 	<dependencies>