diff --git a/go.mod b/go.mod
index b00860c..98bab04 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/ghostiam/protogolint
 
-go 1.20
+go 1.19
 
 require golang.org/x/tools v0.12.0
 
diff --git a/testdata/go.mod b/testdata/go.mod
index 807db39..9d116ab 100644
--- a/testdata/go.mod
+++ b/testdata/go.mod
@@ -1,16 +1,13 @@
 module github.com/ghostiam/protogolint/testdata
 
-go 1.20
+go 1.19
 
 require (
+	github.com/golang/protobuf v1.5.3
+	golang.org/x/net v0.9.0
+	golang.org/x/sys v0.7.0
+	golang.org/x/text v0.9.0
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20230525234030-28d5490b6b19
 	google.golang.org/grpc v1.57.0
 	google.golang.org/protobuf v1.31.0
 )
-
-require (
-	github.com/golang/protobuf v1.5.3 // indirect
-	golang.org/x/net v0.9.0 // indirect
-	golang.org/x/sys v0.7.0 // indirect
-	golang.org/x/text v0.9.0 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20230525234030-28d5490b6b19 // indirect
-)