diff --git a/src/gam/__init__.py b/src/gam/__init__.py
index 99a601d9..4cf40b34 100755
--- a/src/gam/__init__.py
+++ b/src/gam/__init__.py
@@ -7244,6 +7244,7 @@ def enableGAMProjectAPIs(GAMProjectAPIs,
                                   gapi_errors.ErrorReason.FORBIDDEN,
                                   gapi_errors.ErrorReason.PERMISSION_DENIED
                               ],
+                              retry_reasons=[gapi_errors.ErrorReason.INTERNAL_SERVER_ERROR],
                               name=service_name)
                     print(f'    API: {api}, Enabled{currentCount(j, jcount)}')
                     break
diff --git a/src/gam/gapi/errors.py b/src/gam/gapi/errors.py
index 1b7c71b2..efff746f 100644
--- a/src/gam/gapi/errors.py
+++ b/src/gam/gapi/errors.py
@@ -60,6 +60,10 @@ class GapiGroupNotFoundError(Exception):
     pass
 
 
+class GapiInternalServerError(Exception):
+    pass
+
+
 class GapiInvalidError(Exception):
     pass
 
@@ -125,6 +129,7 @@ class ErrorReason(Enum):
     GATEWAY_TIMEOUT = 'gatewayTimeout'
     GROUP_NOT_FOUND = 'groupNotFound'
     INTERNAL_ERROR = 'internalError'
+    INTERNAL_SERVER_ERROR = 'internalServerError'
     INVALID = 'invalid'
     INVALID_ARGUMENT = 'invalidArgument'
     INVALID_MEMBER = 'invalidMember'
@@ -199,6 +204,8 @@ ERROR_REASON_TO_EXCEPTION = {
         GapiGatewayTimeoutError,
     ErrorReason.GROUP_NOT_FOUND:
         GapiGroupNotFoundError,
+    ErrorReason.INTERNAL_SERVER_ERROR:
+        GapiInternalServerError,
     ErrorReason.INVALID:
         GapiInvalidError,
     ErrorReason.INVALID_ARGUMENT:
@@ -336,6 +343,10 @@ def get_gapi_error_detail(e,
             if 'Requested entity was not found' in message or 'does not exist' in message:
                 error = _create_http_error_dict(404, ErrorReason.NOT_FOUND.value,
                                                 message)
+        elif http_status == 500:
+            if 'Failed to convert server response to JSON' in message:
+                error = _create_http_error_dict(500, ErrorReason.INTERNAL_SERVER_ERROR.value,
+                                                message)
     else:
         if 'error_description' in error:
             if error['error_description'] == 'Invalid Value':
diff --git a/src/gam/var.py b/src/gam/var.py
index 4b4f3b5d..8727b865 100644
--- a/src/gam/var.py
+++ b/src/gam/var.py
@@ -8,7 +8,7 @@ import platform
 import re
 
 GAM_AUTHOR = 'Jay Lee <jay0lee@gmail.com>'
-GAM_VERSION = '6.08'
+GAM_VERSION = '6.09'
 GAM_LICENSE = 'Apache License 2.0 (http://www.apache.org/licenses/LICENSE-2.0)'
 
 GAM_URL = 'https://git.io/gam'