diff --git a/Dockerfile b/Dockerfile
index 58769d93..46ae680d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,7 +14,7 @@ FROM yoheimuta/protolint:v0.32.0 as protolint
 FROM golangci/golangci-lint:v1.40.1 as golangci-lint
 FROM koalaman/shellcheck:v0.7.2 as shellcheck
 FROM wata727/tflint:0.29.1 as tflint
-FROM alpine/terragrunt:0.15.5 as terragrunt
+FROM alpine/terragrunt:1.0.0 as terragrunt
 FROM mvdan/shfmt:v3.3.0 as shfmt
 FROM accurics/terrascan:1.6.0 as terrascan
 FROM hadolint/hadolint:latest-alpine as dockerfile-lint
diff --git a/Dockerfile-slim b/Dockerfile-slim
index 60918366..b57dc34b 100644
--- a/Dockerfile-slim
+++ b/Dockerfile-slim
@@ -20,7 +20,7 @@ FROM yoheimuta/protolint:v0.32.0 as protolint
 FROM golangci/golangci-lint:v1.40.0 as golangci-lint
 FROM koalaman/shellcheck:v0.7.2 as shellcheck
 FROM wata727/tflint:0.29.1 as tflint
-FROM alpine/terragrunt:0.15.5 as terragrunt
+FROM alpine/terragrunt:1.0.0 as terragrunt
 FROM mvdan/shfmt:v3.3.0 as shfmt
 FROM accurics/terrascan:1.6.0 as terrascan
 FROM hadolint/hadolint:latest-alpine as dockerfile-lint