diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6742b0298..a94d42e7d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -68,6 +68,9 @@ jobs:
            sudo apt-get update
            sudo apt-get install ghc-${{ matrix.versions.ghc }} cabal-install-${{ matrix.versions.cabal }}
          fi
+         # Use a GitHub workflow command to add folders to PATH.
+         echo "::add-path::/opt/ghc/${{ matrix.versions.ghc }}/bin"
+         echo "::add-path::/opt/cabal/${{ matrix.versions.cabal }}/bin"
 
     # declare/restore cached things
     # caching doesn't work for scheduled runs yet
@@ -89,12 +92,10 @@ jobs:
 
     - name: Install dependencies
       run: |
-          export PATH=/opt/cabal/${{ matrix.versions.cabal }}/bin:/opt/ghc/${{ matrix.versions.ghc }}/bin:$PATH
           cabal v2-update
           cabal v2-build --dependencies-only --enable-tests --disable-optimization
     - name: Build and test
       run: |
-          export PATH=/opt/cabal/${{ matrix.versions.cabal }}/bin:/opt/ghc/${{ matrix.versions.ghc }}/bin:$PATH
           cabal v2-build --enable-tests --disable-optimization 2>&1 | tee build.log
           # fail if warnings in local build
           ! grep -q ": *[Ww]arning:" build.log || exit 1