diff --git a/Dockerfile b/Dockerfile
index 2a70033a..717df0e6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,7 +10,7 @@
 FROM cljkondo/clj-kondo:2021.03.22-alpine as clj-kondo
 FROM dotenvlinter/dotenv-linter:3.0.0 as dotenv-linter
 FROM mstruebing/editorconfig-checker:2.3.3 as editorconfig-checker
-FROM yoheimuta/protolint:v0.30.1 as protolint
+FROM yoheimuta/protolint:v0.31.0 as protolint
 FROM golangci/golangci-lint:v1.38.0 as golangci-lint
 FROM koalaman/shellcheck:v0.7.1 as shellcheck
 FROM wata727/tflint:0.25.0 as tflint