diff --git a/vulnerabilities/api.py b/vulnerabilities/api.py
index 173ec3e5e..55ab7ad3f 100644
--- a/vulnerabilities/api.py
+++ b/vulnerabilities/api.py
@@ -74,8 +74,16 @@ def get_resource_url(self, instance):
 
         return resource_url
 
+class PurlPackageSerializer(BaseResourceSerializer):
 
-class MinimalPackageSerializer(BaseResourceSerializer):
+    purl = serializers.CharField(source="package_url")
+
+    class Meta:
+        model = Package
+        fields = ["url", "purl", "is_vulnerable"]
+
+
+class MinimalPackageSerializer(PurlPackageSerializer):
     """
     Used for nesting inside vulnerability focused APIs.
     """
@@ -99,8 +107,6 @@ def get_vulnerability(self, vuln):
 
     affected_by_vulnerabilities = serializers.SerializerMethodField("get_affected_vulnerabilities")
 
-    purl = serializers.CharField(source="package_url")
-
     class Meta:
         model = Package
         fields = ["url", "purl", "is_vulnerable", "affected_by_vulnerabilities"]
@@ -137,7 +143,7 @@ def to_representation(self, instance):
         data["aliases"] = aliases
         return data
 
-    fixed_packages = MinimalPackageSerializer(
+    fixed_packages = PurlPackageSerializer(
         many=True, source="filtered_fixed_packages", read_only=True
     )
 
@@ -175,10 +181,10 @@ class Meta:
 
 
 class VulnerabilitySerializer(BaseResourceSerializer):
-    fixed_packages = MinimalPackageSerializer(
+    fixed_packages = PurlPackageSerializer(
         many=True, source="filtered_fixed_packages", read_only=True
     )
-    affected_packages = MinimalPackageSerializer(many=True, read_only=True)
+    affected_packages = PurlPackageSerializer(many=True, read_only=True)
 
     references = VulnerabilityReferenceSerializer(many=True, source="vulnerabilityreference_set")
     aliases = AliasSerializer(many=True, source="alias")