diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 76236b6..939fd1c 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -34,3 +34,9 @@ jobs:
         run: python -m pytest tests/
       - name: Python linters
         run: .github/workflows/scripts/lint_python.sh
+  Docker:
+    runs-on: ubuntu-18.04
+    steps:
+      - uses: actions/checkout@v2
+      - name: Check Image Builds
+        run: docker build -t pyvertical:latest .
diff --git a/Dockerfile b/Dockerfile
index 78d31f5..0b9c760 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
-FROM python:3.8
+FROM python:3.7
 
-LABEL version="0.1.0"
+LABEL version="0.1.1"
 LABEL maintainer="OpenMined"
 
 COPY . /pyvertical
@@ -10,7 +10,8 @@ WORKDIR /pyvertical
 # See https://docs.bazel.build/versions/master/install-ubuntu.html
 ## 1. Add bazel distribution
 RUN apt install curl gnupg
-RUN curl -f https://bazel.build/bazel-release.pub.gpg | apt-key add -
+RUN curl -f https://bazel.build/bazel-release.pub.gpg | gpg --dearmor > bazel.gpg
+RUN mv bazel.gpg /etc/apt/trusted.gpg.d/
 RUN echo "deb [arch=amd64] https://storage.googleapis.com/bazel-apt stable jdk1.8" | tee /etc/apt/sources.list.d/bazel.list
 
 ## 2. Install