diff --git a/integration_test.go b/integration_test.go
index a6fe2b6..07bda42 100644
--- a/integration_test.go
+++ b/integration_test.go
@@ -32,7 +32,7 @@
 	regenerate   = flag.Bool("regenerate", false, "regenerate files")
 	buildRelease = flag.Bool("buildRelease", false, "build release binaries")
 
-	protobufVersion = "4b4e6674" // pre-release of 3.12.x
+	protobufVersion = "ef7cc811" // v3.12.0-rc1
 	golangVersions  = []string{"1.9.7", "1.10.8", "1.11.13", "1.12.17", "1.13.8", "1.14"}
 	golangLatest    = golangVersions[len(golangVersions)-1]