diff --git a/Dockerfile b/Dockerfile
index 2d143824..d842c658 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,7 @@ FROM borkdude/clj-kondo:2020.06.21 as clj-kondo
 FROM dotenvlinter/dotenv-linter:2.1.0 as dotenv-linter
 FROM mstruebing/editorconfig-checker:2.1.0 as editorconfig-checker
 FROM golangci/golangci-lint:v1.29.0 as golangci-lint
-FROM yoheimuta/protolint:v0.25.1 as protolint
+FROM yoheimuta/protolint:v0.26.0 as protolint
 FROM koalaman/shellcheck:v0.7.1 as shellcheck
 FROM wata727/tflint:0.18.0 as tflint