diff --git a/scripts/ci/run-playwright-tests.sh b/scripts/ci/run-playwright-tests.sh
index 556b94d6d..95ff0b4df 100755
--- a/scripts/ci/run-playwright-tests.sh
+++ b/scripts/ci/run-playwright-tests.sh
@@ -22,9 +22,11 @@ function main {
 
 function start_mock_api {
   cd "${repo}/mock-api" && npm run mock-api &
+  wait_for_port 9000
 }
 function start_ui {
   cd "${repo}/organisaatio-ui" && npm run start &
+  wait_for_port 3003
 }
 
 function start_server {
@@ -40,6 +42,7 @@ function start_server {
     -Durl-oidservice=http://localhost:9000/oidservice \
     -Dcas.service.organisaatio-service=http://localhost:8080/organisaatio-service-not-available \
     organisaatio-service/build/libs/organisaatio-service.jar &
+    wait_for_port 8080
 }
 
 function install_npm_dependencies {
@@ -61,4 +64,11 @@ function stop_database {
   docker compose down
 }
 
+function wait_for_port {
+  local -r port="$1"
+  while ! nc -z localhost $port; do
+    sleep 1; echo "Waiting for port $port to respond"
+  done
+}
+
 main "$@"