diff --git a/tools/@aws-cdk/integration-test-deployment/lib/integration-test-runner.ts b/tools/@aws-cdk/integration-test-deployment/lib/integration-test-runner.ts
index b56c45b8124fc..0183538af4a6c 100644
--- a/tools/@aws-cdk/integration-test-deployment/lib/integration-test-runner.ts
+++ b/tools/@aws-cdk/integration-test-deployment/lib/integration-test-runner.ts
@@ -1,4 +1,4 @@
-/* eslint-disable no-console */
+
 import { spawn } from 'child_process';
 import { STSClient, AssumeRoleCommand } from '@aws-sdk/client-sts';
 import { AtmosphereAllocation } from './atmosphere';
@@ -53,7 +53,20 @@ export const deployIntegTests = async (props: {
       console.error(e);
       hasFailure = true;
     } finally {
-      await allocation.release(outcome);
+      try {
+        await allocation.release(outcome);
+      } catch (e) {
+        if (e instanceof Error && e.message.includes('The security token included in the request is expired')) {
+          // In case of timeouts, the expired security token error can occur. We can skip the release as it will automatically be deleted.
+          // Atmosphere will automatically release the resource if a timeout occurs on the backend.
+          //
+          // Log uses Github warning syntax, see: https://docs.github.com/en/actions/reference/workflows-and-actions/workflow-commands#setting-a-warning-message
+          console.warn(`::warning::Atmosphere allocation release failed: ${e}`);
+          console.warn('Skipping release request as we assume its caused by an integ test timing out.');
+        } else {
+          throw e;
+        }
+      }
     }
   }
 
diff --git a/tools/@aws-cdk/integration-test-deployment/test/integration-test-deployment.test.ts b/tools/@aws-cdk/integration-test-deployment/test/integration-test-deployment.test.ts
index 3f38722b64415..001428b4ebf8c 100644
--- a/tools/@aws-cdk/integration-test-deployment/test/integration-test-deployment.test.ts
+++ b/tools/@aws-cdk/integration-test-deployment/test/integration-test-deployment.test.ts
@@ -100,4 +100,26 @@ describe('Run Integration Tests with Atmosphere', () => {
 
     validateSnapshotRun({ batchSize: 3 });
   });
+
+  test('failed Atmosphere release requests after timeout creates a warning and proceeds with the next batch', async () => {
+    jest.spyOn(integRunner, 'deployIntegrationTest').mockImplementation(() => {
+      return Promise.reject(new Error('Integration tests failed with exit code 1'));
+    });
+
+    jest.spyOn(mockAtmosphereAllocation, 'release').mockImplementation(() => {
+      return Promise.reject(new Error('The security token included in the request is expired'));
+    });
+
+    const consoleSpy = jest.spyOn(console, 'warn').mockImplementation();
+
+    await expect(integRunner.deployIntegTests({ atmosphereRoleArn, endpoint, pool })).rejects.toThrow(
+      'Deployment integration test did not pass',
+    );
+
+    expect(consoleSpy).toHaveBeenCalledWith(expect.stringContaining('::warning::Atmosphere allocation release failed: Error: The security token included in the request is expired'));
+
+    consoleSpy.mockRestore();
+
+    validateSnapshotRun({ batchSize: 3 });
+  });
 });