diff --git a/src/main/java/eu/mulk/mulkcms2/benki/posts/PostTarget.java b/src/main/java/eu/mulk/mulkcms2/benki/posts/PostTarget.java
index 112ca3e..c3e58c5 100644
--- a/src/main/java/eu/mulk/mulkcms2/benki/posts/PostTarget.java
+++ b/src/main/java/eu/mulk/mulkcms2/benki/posts/PostTarget.java
@@ -25,6 +25,11 @@
   public int targetId;
 
   @ManyToOne(fetch = FetchType.LAZY)
-  @JoinColumn(name = "target", referencedColumnName = "id", nullable = false)
+  @JoinColumn(
+      name = "target",
+      referencedColumnName = "id",
+      nullable = false,
+      insertable = false,
+      updatable = false)
   public Role target;
 }
diff --git a/src/main/java/eu/mulk/mulkcms2/benki/posts/PostTargetPK.java b/src/main/java/eu/mulk/mulkcms2/benki/posts/PostTargetPK.java
index e439ec9..f6347b2 100644
--- a/src/main/java/eu/mulk/mulkcms2/benki/posts/PostTargetPK.java
+++ b/src/main/java/eu/mulk/mulkcms2/benki/posts/PostTargetPK.java
@@ -6,7 +6,10 @@
 
 public class PostTargetPK implements Serializable {
 
+  @Column(name = "message", nullable = false)
   private int message;
+
+  @Column(name = "target", nullable = false)
   private int targetId;
 
   @Column(name = "message", nullable = false)
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index ee95952..9bdd4f4 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -85,7 +85,7 @@
 quarkus.container-image.name = mulkcms2
 quarkus.container-image.registry = docker.benkard.de
 
-quarkus.jib.base-jvm-image = azul/zulu-openjdk-alpine:16-jre
+quarkus.jib.base-jvm-image = container-registry.oracle.com/java/openjdk:latest
 #quarkus.jib.jvm-arguments = -XX:+UseShenandoahGC,-XX:ShenandoahGCHeuristics=compact
 quarkus.jib.jvm-arguments = -XX:G1PeriodicGCInterval=300000,-XX:G1PeriodicGCSystemLoadThreshold=0