diff --git a/packages/@aws-cdk/core/lib/stack.ts b/packages/@aws-cdk/core/lib/stack.ts
index d6278d05834e3..4960991a08b26 100644
--- a/packages/@aws-cdk/core/lib/stack.ts
+++ b/packages/@aws-cdk/core/lib/stack.ts
@@ -793,7 +793,7 @@ export class Stack extends CoreConstruct implements ITaggable {
         Annotations.of(this).addInfo(`Number of resources: ${numberOfResources} is approaching allowed maximum of ${this.maxResources}`);
       }
     }
-    fs.writeFileSync(outPath, JSON.stringify(template, undefined, 2));
+    fs.writeFileSync(outPath, JSON.stringify(template, undefined, 1));
 
     for (const ctx of this._missingContext) {
       if (lookupRoleArn != null) {
diff --git a/packages/@aws-cdk/pipelines/test/blueprint/stack-deployment.test.ts b/packages/@aws-cdk/pipelines/test/blueprint/stack-deployment.test.ts
index 5c6de962beec0..005b49586b500 100644
--- a/packages/@aws-cdk/pipelines/test/blueprint/stack-deployment.test.ts
+++ b/packages/@aws-cdk/pipelines/test/blueprint/stack-deployment.test.ts
@@ -31,7 +31,7 @@ describe('templateUrl', () => {
     const sd = StageDeployment.fromStage(stage);
 
     // THEN
-    expect(sd.stacks[0].templateUrl).toBe('https://cdk-hnb659fds-assets-111-us-east-1.s3.us-east-1.amazonaws.com/93ae4de94f81d0905c37db64b7304f5d65233ca4d9581d3a32215743c9bb92dd.json');
+    expect(sd.stacks[0].templateUrl).toBe('https://cdk-hnb659fds-assets-111-us-east-1.s3.us-east-1.amazonaws.com/21fbb51d7b23f6a6c262b46a9caee79d744a3ac019fd45422d988b96d44b2a22.json');
   });
 
   test('without region', () => {
@@ -43,7 +43,7 @@ describe('templateUrl', () => {
     const sd = StageDeployment.fromStage(stage);
 
     // THEN
-    expect(sd.stacks[0].templateUrl).toBe('https://cdk-hnb659fds-assets-111-.s3.amazonaws.com/$%7BAWS::Region%7D/93ae4de94f81d0905c37db64b7304f5d65233ca4d9581d3a32215743c9bb92dd.json');
+    expect(sd.stacks[0].templateUrl).toBe('https://cdk-hnb659fds-assets-111-.s3.amazonaws.com/$%7BAWS::Region%7D/21fbb51d7b23f6a6c262b46a9caee79d744a3ac019fd45422d988b96d44b2a22.json');
   });
 
 });