diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 3e00829..2d199d3 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -27,6 +27,8 @@ jobs:
 
       - name: Get C dependencies
         run: |
+          sudo add-apt-repository ppa:strukturag/libheif
+          sudo add-apt-repository ppa:strukturag/libde265
           sudo apt-get update
           sudo apt-get install -y libdlib-dev libblas-dev liblapack-dev libjpeg-turbo8-dev libheif-dev