diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index dfd190bb..1f31fea2 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -5,5 +5,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
+    - name: Install packages
+      run: sudo apt-get install libmbedtls-dev
     - name: make
       run: make test test++