diff --git a/.github/workflows/integration-tests.yml b/.github/workflows/integration-tests.yml
index ba9ff01..762331f 100644
--- a/.github/workflows/integration-tests.yml
+++ b/.github/workflows/integration-tests.yml
@@ -70,14 +70,14 @@ jobs:
           ANTHROPIC_API_KEY=$ANTHROPIC_API_KEY
           OPENAI_API_KEY=$OPENAI_API_KEY
           GEMINI_API_KEY=$GEMINI_API_KEY
-          OPENROUTER_API_KEY=O$PENROUTER_API_KEY
+          OPENROUTER_API_KEY=$OPENROUTER_API_KEY
           INTEGRATION_TEST_VERBOSE=${{ github.event.inputs.verbose || 'false' }}
           INTEGRATION_TEST_MAX_COST=5.00
           EOF
 
       - name: Run integration tests
         run: |
-          vendor/bin/phpunit --testsuite integration --display-warnings --display-notices
+          vendor/bin/phpunit -c phpunit-integration.xml --display-warnings --display-notices
         timeout-minutes: 10
 
       - name: Upload test results
diff --git a/phpunit-integration.xml b/phpunit-integration.xml
new file mode 100644
index 0000000..541fd74
--- /dev/null
+++ b/phpunit-integration.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.5/phpunit.xsd" bootstrap="vendor/autoload.php" colors="true" executionOrder="random" beStrictAboutOutputDuringTests="true" failOnRisky="true" failOnWarning="true">
+  <testsuites>
+    <testsuite name="integration">
+      <directory>tests/Integration</directory>
+    </testsuite>
+  </testsuites>
+  <source>
+    <include>
+      <directory>src</directory>
+    </include>
+  </source>
+</phpunit>
\ No newline at end of file