diff --git a/.github/workflows/main-analysis.yml b/.github/workflows/main-analysis.yml
index 3826f13..5468b77 100644
--- a/.github/workflows/main-analysis.yml
+++ b/.github/workflows/main-analysis.yml
@@ -38,7 +38,7 @@ jobs:
           set -e
 
           echo "Running tests with coverage..."
-          swift test --enable-code-coverage --quiet
+          swift test --enable-code-coverage --no-parallel --quiet
 
           BIN_PATH=$(swift build --show-bin-path)
 
diff --git a/.github/workflows/pull-request-analysis.yml b/.github/workflows/pull-request-analysis.yml
index f178704..753567f 100644
--- a/.github/workflows/pull-request-analysis.yml
+++ b/.github/workflows/pull-request-analysis.yml
@@ -36,4 +36,4 @@ jobs:
             ${{ runner.os }}-${{ runner.arch }}-spm-
 
       - name: Run tests
-        run: swift test
+        run: swift test --no-parallel