diff --git a/Dockerfile b/Dockerfile
index 33bc200..dcdbe1a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,7 +12,7 @@ RUN apk add --no-cache --update \
     ca-certificates \
     curl
 
-ENV TERRAGRUNT_VERSION=0.28.19
+ENV TERRAGRUNT_VERSION=0.28.20
 ENV TERRAGRUNT_DOWNLOAD_URL=https://github.com/gruntwork-io/terragrunt/releases/download
 RUN curl -fsSL -O ${TERRAGRUNT_DOWNLOAD_URL}/v${TERRAGRUNT_VERSION}/terragrunt_linux_amd64 && \
     curl -fsSL ${TERRAGRUNT_DOWNLOAD_URL}/v${TERRAGRUNT_VERSION}/SHA256SUMS | grep terragrunt_linux_amd64 > SHA256SUMS && \
diff --git a/README.md b/README.md
index c17296b..9686945 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 ![Build](https://github.com/rrey/terraform-runner/workflows/Docker%20Image%20CI/badge.svg)
 ![](https://img.shields.io/badge/Terraform-0.14.10-blueviolet)
-![](https://img.shields.io/badge/Terragrunt-0.28.19-blue)
+![](https://img.shields.io/badge/Terragrunt-0.28.20-blue)
 ![](https://img.shields.io/badge/opa-0.27.1-lightgrey)
 ![](https://img.shields.io/badge/conftest-0.23.0-blue)