diff --git a/app/controlplane/api/gen/frontend/workflowcontract/v1/crafting_schema.ts b/app/controlplane/api/gen/frontend/workflowcontract/v1/crafting_schema.ts
index 6575aa35a..63cff04e1 100644
--- a/app/controlplane/api/gen/frontend/workflowcontract/v1/crafting_schema.ts
+++ b/app/controlplane/api/gen/frontend/workflowcontract/v1/crafting_schema.ts
@@ -2187,10 +2187,10 @@ export const PolicySpecV2 = {
       writer.uint32(18).string(message.embedded);
     }
     if (message.ref !== undefined) {
-      writer.uint32(26).string(message.ref);
+      writer.uint32(34).string(message.ref);
     }
     if (message.kind !== 0) {
-      writer.uint32(32).int32(message.kind);
+      writer.uint32(24).int32(message.kind);
     }
     return writer;
   },
@@ -2216,15 +2216,15 @@ export const PolicySpecV2 = {
 
           message.embedded = reader.string();
           continue;
-        case 3:
-          if (tag !== 26) {
+        case 4:
+          if (tag !== 34) {
             break;
           }
 
           message.ref = reader.string();
           continue;
-        case 4:
-          if (tag !== 32) {
+        case 3:
+          if (tag !== 24) {
             break;
           }
 
diff --git a/app/controlplane/api/workflowcontract/v1/crafting_schema.pb.go b/app/controlplane/api/workflowcontract/v1/crafting_schema.pb.go
index 633875b48..b7778d6fd 100644
--- a/app/controlplane/api/workflowcontract/v1/crafting_schema.pb.go
+++ b/app/controlplane/api/workflowcontract/v1/crafting_schema.pb.go
@@ -1120,7 +1120,7 @@ type PolicySpecV2 struct {
 	//	*PolicySpecV2_Ref
 	Source isPolicySpecV2_Source `protobuf_oneof:"source"`
 	// if set, it will match any material supported by Chainloop
-	Kind          CraftingSchema_Material_MaterialType `protobuf:"varint,4,opt,name=kind,proto3,enum=workflowcontract.v1.CraftingSchema_Material_MaterialType" json:"kind,omitempty"`
+	Kind          CraftingSchema_Material_MaterialType `protobuf:"varint,3,opt,name=kind,proto3,enum=workflowcontract.v1.CraftingSchema_Material_MaterialType" json:"kind,omitempty"`
 	unknownFields protoimpl.UnknownFields
 	sizeCache     protoimpl.SizeCache
 }
@@ -1216,7 +1216,7 @@ type PolicySpecV2_Embedded struct {
 
 type PolicySpecV2_Ref struct {
 	// generic reference for file:// and http(s):// schemes
-	Ref string `protobuf:"bytes,3,opt,name=ref,proto3,oneof"`
+	Ref string `protobuf:"bytes,4,opt,name=ref,proto3,oneof"`
 }
 
 func (*PolicySpecV2_Path) isPolicySpecV2_Source() {}
@@ -1980,8 +1980,8 @@ const file_workflowcontract_v1_crafting_schema_proto_rawDesc = "" +
 	"\fPolicySpecV2\x12\x18\n" +
 	"\x04path\x18\x01 \x01(\tB\x02\x18\x01H\x00R\x04path\x12\x1c\n" +
 	"\bembedded\x18\x02 \x01(\tH\x00R\bembedded\x12\x12\n" +
-	"\x03ref\x18\x03 \x01(\tH\x00R\x03ref\x12W\n" +
-	"\x04kind\x18\x04 \x01(\x0e29.workflowcontract.v1.CraftingSchema.Material.MaterialTypeB\b\xbaH\x05\x82\x01\x02 \x03R\x04kindB\x0f\n" +
+	"\x03ref\x18\x04 \x01(\tH\x00R\x03ref\x12W\n" +
+	"\x04kind\x18\x03 \x01(\x0e29.workflowcontract.v1.CraftingSchema.Material.MaterialTypeB\b\xbaH\x05\x82\x01\x02 \x03R\x04kindB\x0f\n" +
 	"\x06source\x12\x05\xbaH\x02\b\x01\"h\n" +
 	"\tAutoMatch\x12\x18\n" +
 	"\x04path\x18\x01 \x01(\tB\x02\x18\x01H\x00R\x04path\x12\x1c\n" +
diff --git a/app/controlplane/api/workflowcontract/v1/crafting_schema.proto b/app/controlplane/api/workflowcontract/v1/crafting_schema.proto
index 8c7e72a9b..1e7975ad2 100644
--- a/app/controlplane/api/workflowcontract/v1/crafting_schema.proto
+++ b/app/controlplane/api/workflowcontract/v1/crafting_schema.proto
@@ -330,13 +330,13 @@ message PolicySpecV2 {
     string embedded = 2;
 
     // generic reference for file:// and http(s):// schemes
-    string ref = 3;
+    string ref = 4;
 
     option (buf.validate.oneof).required = true;
   }
 
   // if set, it will match any material supported by Chainloop
-  CraftingSchema.Material.MaterialType kind = 4 [(buf.validate.field).enum = {
+  CraftingSchema.Material.MaterialType kind = 3 [(buf.validate.field).enum = {
     not_in: [3]
   }];
 }