diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index a63b48f5..a6d5de02 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -34,6 +34,9 @@ jobs:
         uses: actions/checkout@v2
         with:
           submodules: recursive
+      - name: "Install Python Dependencies"
+        shell: bash
+        run: pip install lark pyyaml
       - name: "Run Devicetree Tests"
         shell: bash
         working-directory: Buildscripts/DevicetreeCompiler/tests