diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index a77e5dd584..320231212d 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -35,6 +35,8 @@ jobs:
 
       - name: Test
         shell: bash
+        env:
+          NO_PARALLEL: 1
         run: ./build_and_test.sh
 
   stability-test-fast:
@@ -74,7 +76,7 @@ jobs:
         run: rm -r stability-tests
 
       - name: Create coverage file
-        run: go test -timeout 120m -v -covermode=atomic -coverpkg=./... -coverprofile coverage.txt ./...
+        run: go test -timeout 120m -parallel=1 -v -covermode=atomic -coverpkg=./... -coverprofile coverage.txt ./...
 
       - name: Upload coverage file
         run: bash <(curl -s https://codecov.io/bash)
diff --git a/build_and_test.sh b/build_and_test.sh
index 7d59a4c91a..6a3dd6b793 100755
--- a/build_and_test.sh
+++ b/build_and_test.sh
@@ -24,7 +24,7 @@ go build -v -o karlsend .
 
 # check if parallel tests are enabled.
 [ -n "${NO_PARALLEL}" ] && {
-	go test -timeout 20m -parallel=1 -v ./...
+	go test -timeout 30m -parallel=1 -v ./...
 } || {
-	go test -timeout 20m -v ./...
+	go test -timeout 30m -v ./...
 }