diff --git a/.github/workflows/proof_verification_tests.yml b/.github/workflows/proof_verification_tests.yml
index afcab1efa..978cb3f30 100644
--- a/.github/workflows/proof_verification_tests.yml
+++ b/.github/workflows/proof_verification_tests.yml
@@ -40,13 +40,17 @@ jobs:
           repository: fmkra/scarb
       
       - name: Build custom scarb
-        run: cd scarb && cargo build && cd ../
+        run: cd scarb && cargo build
+        working-directory: scarb
 
       - name: Build project
         run: ./scarb/target/debug/scarb build --no-default-features --features=${{ matrix.layout }},keccak
+        working-directory: $GITHUB_WORKSPACE
       
       - name: Test project
         run: ./scarb/target/debug/scarb test --no-default-features --features=${{ matrix.layout }},keccak
+        working-directory: $GITHUB_WORKSPACE
       
       - name: Run verification
         run: cargo run --bin runner -- target/dev/cairo_verifier.sierra.json < examples/proofs/${{ matrix.layout }}/example_proof.json
+        working-directory: $GITHUB_WORKSPACE
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 1a2cfaa1b..db87c6532 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -16,6 +16,14 @@ jobs:
       
       - name: Format code
         run: scarb fmt --check
+
+      - name: Checkout custom scarb
+        uses: actions/checkout@v3
+        with:
+          repository: fmkra/scarb
+      
+      - name: Build custom scarb
+        run: cd scarb && cargo build && cd ../
       
       - name: Run tests
-        run: scarb test
\ No newline at end of file
+        run: ./scarb/target/debug/scarb test
\ No newline at end of file