diff --git a/lib/aws-semaphore-agent-stack.js b/lib/aws-semaphore-agent-stack.js
index 7c3a8d2..e946154 100644
--- a/lib/aws-semaphore-agent-stack.js
+++ b/lib/aws-semaphore-agent-stack.js
@@ -160,7 +160,7 @@ class AwsSemaphoreAgentStack extends Stack {
 
   getInstanceProfileRoleManagedPolicies() {
     let managedPolicies = [
-      ManagedPolicy.fromAwsManagedPolicyName('service-role/AmazonEC2RoleforSSM')
+      ManagedPolicy.fromAwsManagedPolicyName('AmazonSSMManagedInstanceCore')
     ];
 
     if (!this.argumentStore.isEmpty("SEMAPHORE_AGENT_MANAGED_POLICY_NAMES")) {
diff --git a/test/aws-semaphore-agent.test.js b/test/aws-semaphore-agent.test.js
index aadfeb9..3021228 100644
--- a/test/aws-semaphore-agent.test.js
+++ b/test/aws-semaphore-agent.test.js
@@ -141,7 +141,7 @@ describe("instance profile", () => {
       },
       ManagedPolicyArns: [{
         'Fn::Join': ['', [
-          'arn:', { Ref: 'AWS::Partition' }, ':iam::aws:policy/service-role/AmazonEC2RoleforSSM'
+          'arn:', { Ref: 'AWS::Partition' }, ':iam::aws:policy/AmazonSSMManagedInstanceCore'
         ]]
       }]
     });
@@ -167,7 +167,7 @@ describe("instance profile", () => {
       ManagedPolicyArns: [
         {
           'Fn::Join': ['', [
-            'arn:', { Ref: 'AWS::Partition' }, ':iam::aws:policy/service-role/AmazonEC2RoleforSSM'
+            'arn:', { Ref: 'AWS::Partition' }, ':iam::aws:policy/AmazonSSMManagedInstanceCore'
           ]]
         },
         {