diff --git a/models-pdp/src/main/java/org/onap/policy/models/pdp/concepts/PdpGroup.java b/models-pdp/src/main/java/org/onap/policy/models/pdp/concepts/PdpGroup.java
index 4cb0ac5..8cad58c 100644
--- a/models-pdp/src/main/java/org/onap/policy/models/pdp/concepts/PdpGroup.java
+++ b/models-pdp/src/main/java/org/onap/policy/models/pdp/concepts/PdpGroup.java
@@ -21,6 +21,7 @@
 
 package org.onap.policy.models.pdp.concepts;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import java.util.HashSet;
 import java.util.LinkedHashMap;
 import java.util.List;
@@ -121,12 +122,14 @@
     }
 
     @Override
+    @JsonIgnore
     public String getVersion() {
         // We need to pass a version for keying in the database
         return PfKey.NULL_KEY_VERSION;
     }
 
     @Override
+    @JsonIgnore
     public void setVersion(String version) {
         // Just ignore any version that is set
     }
diff --git a/models-tosca/src/main/java/org/onap/policy/models/tosca/authorative/concepts/ToscaPolicyIdentifierOptVersion.java b/models-tosca/src/main/java/org/onap/policy/models/tosca/authorative/concepts/ToscaPolicyIdentifierOptVersion.java
index adfd616..a6aec08 100644
--- a/models-tosca/src/main/java/org/onap/policy/models/tosca/authorative/concepts/ToscaPolicyIdentifierOptVersion.java
+++ b/models-tosca/src/main/java/org/onap/policy/models/tosca/authorative/concepts/ToscaPolicyIdentifierOptVersion.java
@@ -20,6 +20,7 @@
 
 package org.onap.policy.models.tosca.authorative.concepts;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.google.gson.annotations.SerializedName;
 import lombok.Data;
 import lombok.NoArgsConstructor;
@@ -61,6 +62,7 @@
      *
      * @return {@code true} if the version is null/missing, {@code false}
      */
+    @JsonIgnore
     public boolean isNullVersion() {
         return (version == null);
     }