diff --git a/Dockerfile.dev b/Dockerfile.dev
index a0ff840d62..19217625af 100644
--- a/Dockerfile.dev
+++ b/Dockerfile.dev
@@ -1,6 +1,6 @@
 FROM ghcr.io/runatlantis/atlantis:latest
 COPY atlantis /usr/local/bin/atlantis
 # TODO: remove this once we get this in the base image
-ENV DEFAULT_CONFTEST_VERSION=0.28.0
+ENV DEFAULT_CONFTEST_VERSION=0.28.1
 
 WORKDIR /atlantis/src
diff --git a/testing/Dockerfile b/testing/Dockerfile
index 2634bc7593..235c5dd44d 100644
--- a/testing/Dockerfile
+++ b/testing/Dockerfile
@@ -9,7 +9,7 @@ RUN curl -LOks https://releases.hashicorp.com/terraform/${TERRAFORM_VERSION}/ter
     rm terraform_${TERRAFORM_VERSION}_linux_amd64.zip
 
 # Install conftest
-ENV CONFTEST_VERSION=0.28.0
+ENV CONFTEST_VERSION=0.28.1
 RUN curl -LOs https://github.com/open-policy-agent/conftest/releases/download/v${CONFTEST_VERSION}/conftest_${CONFTEST_VERSION}_Linux_x86_64.tar.gz && \
     curl -LOs https://github.com/open-policy-agent/conftest/releases/download/v${CONFTEST_VERSION}/checksums.txt && \
     sed -n "/conftest_${CONFTEST_VERSION}_Linux_x86_64.tar.gz/p" checksums.txt | sha256sum -c && \