diff --git a/schemas/proc_cert_model_schema.json b/schemas/proc_cert_model_schema.json
index a489454cb..6f1636ee2 100644
--- a/schemas/proc_cert_model_schema.json
+++ b/schemas/proc_cert_model_schema.json
@@ -81,19 +81,7 @@
       "description": "Reference to the class this model belongs to"
     },
     "versions": {
-      "type": "array",
-      "items": {
-        "type": "object",
-        "required": ["version"],
-        "properties": {
-          "version": {
-            "$ref": "schema_defs.json#/$defs/semantic_version"
-          }
-        },
-        "additionalProperties": false
-      },
-      "minItems": 1,
-      "description": "List of semantic versions within the model"
+      "$ref": "schema_defs.json#/$defs/versions" 
     },
     "base": {
       "type": "integer",
diff --git a/schemas/profile_release_schema.json b/schemas/profile_release_schema.json
index 0bacc3900..d9fbb9ff7 100644
--- a/schemas/profile_release_schema.json
+++ b/schemas/profile_release_schema.json
@@ -19,6 +19,10 @@
     "long name": {
       "type": "string",
       "description": "One line description of this Profile Release"
+    },
+    "versions": {
+      "$ref": "schema_defs.json#/$defs/versions" 
     }
-  }
+  },
+  "additionalProperties": false
 }
diff --git a/schemas/profile_schema.json b/schemas/profile_schema.json
index c7936f491..96a542134 100644
--- a/schemas/profile_schema.json
+++ b/schemas/profile_schema.json
@@ -30,5 +30,6 @@
     "cert_test_procedures": {
       "$ref": "schema_defs.json#/$defs/cert_test_procedures"
     }
-  }
+  },
+  "additionalProperties": false
 }
diff --git a/schemas/schema_defs.json b/schemas/schema_defs.json
index 8560534e6..29009240c 100644
--- a/schemas/schema_defs.json
+++ b/schemas/schema_defs.json
@@ -374,6 +374,21 @@
         },
         "additionalProperties": false
       }
+    },
+    "versions": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "required": ["version"],
+        "properties": {
+          "version": {
+            "$ref": "schema_defs.json#/$defs/semantic_version"
+          }
+        },
+        "additionalProperties": false
+      },
+      "minItems": 1,
+      "description": "List of semantic versions"
     }
   }
 }