diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index caf0356..f0ff8e5 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -11,13 +11,15 @@ jobs:
       run: |
         set -x
         mkdir -p deps
+        mkdir -p installed
+        PREFIX=$(pwd)/installed
         git clone ${{ vars.VERSIONERS_URI }} deps/versioners
         cd deps/versioners
-        make install
+        PREFIX=$PREFIX make install
         cd ../../
         git clone ${{ vars.SHUNIT_URI }} deps/shunit
         cd deps/shunit
-        make install
+        PREFIX=$PREFIX make install
         cd ../../
         make test-ci
         cat junit.xml