diff --git a/src/main/java/de/hmmh/pmt/db/AllocationId.java b/src/main/java/de/hmmh/pmt/db/AllocationId.java
index 2274d71..355cfa9 100644
--- a/src/main/java/de/hmmh/pmt/db/AllocationId.java
+++ b/src/main/java/de/hmmh/pmt/db/AllocationId.java
@@ -12,6 +12,7 @@ import java.io.Serializable;
 @NoArgsConstructor
 @AllArgsConstructor
 public class AllocationId implements Serializable {
+    private static final long serialVersionUID = 1L;
     private Long projectId;
     private Long employeeId;
 }
diff --git a/src/main/resources/spotbugs-exclude.xml b/src/main/resources/spotbugs-exclude.xml
index af92a63..6fab22b 100644
--- a/src/main/resources/spotbugs-exclude.xml
+++ b/src/main/resources/spotbugs-exclude.xml
@@ -4,6 +4,10 @@
         <Class name="de.hmmh.pmt.employee.ApiClientFactory"/>
         <Bug code="M,V,EI"/>
     </Match>
+    <Match>
+        <Class name="de.hmmh.pmt.db.Allocation"/>
+        <Bug code="M,V,EI,EI2"/>
+    </Match>
     <Match>
         <!--Ignore Auto Generated Code -->
         <Source name="~.*build/.*"/>