diff --git a/Dockerfile b/Dockerfile
index 40343ab..ff307a2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,6 +3,14 @@ FROM hashicorp/terraform:$TERRAFORM_VERSION AS terraform
 
 FROM golang:1.17.11-alpine3.16
 RUN apk --no-cache add make git bash
+
+# A workaround for a permission issue of git.
+# Since UIDs are different between host and container,
+# the .git directory is untrusted by default.
+# We need to allow it explicitly.
+# https://github.com/actions/checkout/issues/760
+RUN git config --global --add safe.directory /work
+
 COPY --from=terraform /bin/terraform /usr/local/bin/
 WORKDIR /work