diff --git a/Dockerfile b/Dockerfile
index 9a2d4e8b5cf4b7c263cf4978209e106b5b6e91c6..fdf716e80536f3fa87f9eb20118292f64e5439b1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,7 +12,7 @@ RUN curl -sL "$(curl -s https://api.github.com/repos/norwoodj/helm-docs/releases
     tar xf /tmp/helm-docs.tar.gz -C /tmp/
 
 FROM public.ecr.aws/ubuntu/ubuntu:22.04
-RUN apt-get update && apt-get install -y git shellcheck python3-pip --no-install-recommends && apt-get clean && rm -rf /var/lib/apt/lists/*
+RUN apt-get update && apt-get install -y git shellcheck python3-pip python-is-python3 --no-install-recommends && apt-get clean && rm -rf /var/lib/apt/lists/*
 COPY requirements.txt /requirements.txt
 RUN pip --no-cache-dir install -r requirements.txt
 ADD https://raw.githubusercontent.com/saltstack/salt/master/.pylintrc /etc/saltpylint