diff --git a/.github/workflows/integration-tests.yml b/.github/workflows/integration-tests.yml
index 8e4977c..83bb94c 100644
--- a/.github/workflows/integration-tests.yml
+++ b/.github/workflows/integration-tests.yml
@@ -46,18 +46,23 @@ jobs:
     - name: Download dependencies
       run: go mod download
 
+    - name: Install PostgreSQL client
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y postgresql-client
+
     - name: Initialize test database
       env:
         PGPASSWORD: relspec_test_password
       run: |
-        psql -h localhost -U relspec -d relspec_test -f tests/postgres/init.sql
+        psql -h localhost -p 5439 -U relspec -d relspec_test -f tests/postgres/init.sql
 
     - name: Verify database setup
       env:
         PGPASSWORD: relspec_test_password
       run: |
         echo "Verifying database initialization..."
-        psql -h localhost -U relspec -d relspec_test -c "
+        psql -h localhost -p 5439 -U relspec -d relspec_test -c "
         SELECT
           (SELECT COUNT(*) FROM pg_namespace WHERE nspname NOT IN ('pg_catalog', 'information_schema', 'pg_toast') AND nspname NOT LIKE 'pg_%') as schemas,
           (SELECT COUNT(*) FROM pg_tables WHERE schemaname NOT IN ('pg_catalog', 'information_schema')) as tables,