diff --git a/src/rpdk/core/boto_helpers.py b/src/rpdk/core/boto_helpers.py
index eed4b9c6..f70273a4 100644
--- a/src/rpdk/core/boto_helpers.py
+++ b/src/rpdk/core/boto_helpers.py
@@ -44,7 +44,7 @@ def get_temporary_credentials(session, key_names=BOTO_CRED_KEYS, role_arn=None):
         )
         try:
             response = sts_client.assume_role(
-                RoleArn=role_arn, RoleSessionName=session_name, DurationSeconds=21600
+                RoleArn=role_arn, RoleSessionName=session_name, DurationSeconds=900
             )
         except ClientError:
             # pylint: disable=W1201
@@ -64,7 +64,7 @@ def get_temporary_credentials(session, key_names=BOTO_CRED_KEYS, role_arn=None):
             creds = (frozen.access_key, frozen.secret_key, frozen.token)
         else:
             try:
-                response = sts_client.get_session_token(DurationSeconds=21600)
+                response = sts_client.get_session_token(DurationSeconds=900)
             except ClientError as e:
                 LOG.debug(
                     "Getting session token resulted in unknown ClientError", exc_info=e
diff --git a/tests/test_boto_helpers.py b/tests/test_boto_helpers.py
index 540f3e7a..0cc24642 100644
--- a/tests/test_boto_helpers.py
+++ b/tests/test_boto_helpers.py
@@ -101,7 +101,7 @@ def test_get_temporary_credentials_needs_token():
         endpoint_url="https://sts.us-east-2.amazonaws.com",
         region_name="us-east-2",
     )
-    client.get_session_token.assert_called_once_with(DurationSeconds=21600)
+    client.get_session_token.assert_called_once_with(DurationSeconds=900)
 
     assert len(creds) == 3
     assert tuple(creds.keys()) == LOWER_CAMEL_CRED_KEYS
@@ -135,7 +135,7 @@ def test_get_temporary_credentials_invalid_credentials():
         endpoint_url="https://sts.us-east-2.amazonaws.com",
         region_name="us-east-2",
     )
-    client.get_session_token.assert_called_once_with(DurationSeconds=21600)
+    client.get_session_token.assert_called_once_with(DurationSeconds=900)
 
 
 def test_get_temporary_credentials_assume_role_fails():
@@ -163,7 +163,7 @@ def test_get_temporary_credentials_assume_role_fails():
         region_name="us-east-2",
     )
     client.assume_role.assert_called_once_with(
-        RoleArn=EXPECTED_ROLE, RoleSessionName=ANY, DurationSeconds=21600
+        RoleArn=EXPECTED_ROLE, RoleSessionName=ANY, DurationSeconds=900
     )
 
 
@@ -192,7 +192,7 @@ def test_get_temporary_credentials_assume_role():
         region_name="cn-north-1",
     )
     client.assume_role.assert_called_once_with(
-        RoleArn=EXPECTED_ROLE, RoleSessionName=ANY, DurationSeconds=21600
+        RoleArn=EXPECTED_ROLE, RoleSessionName=ANY, DurationSeconds=900
     )
 
     assert len(creds) == 3