diff --git a/dapr/clients/grpc/_request.py b/dapr/clients/grpc/_request.py
index 47188c79e..c7b5c55ba 100644
--- a/dapr/clients/grpc/_request.py
+++ b/dapr/clients/grpc/_request.py
@@ -88,7 +88,7 @@ class InvokeMethodRequest(DaprRequest):
             only for bytes array data.
     """
 
-    HTTP_METHODS = ['GET', 'HEAD', 'POST', 'PUT', 'DELETE', 'CONNECT', 'OPTIONS', 'TRACE']
+    HTTP_METHODS = ['GET', 'HEAD', 'POST', 'PUT', 'DELETE', 'CONNECT', 'OPTIONS', 'TRACE', 'PATCH']
 
     def __init__(
         self,
diff --git a/tests/clients/test_dapr_grpc_request.py b/tests/clients/test_dapr_grpc_request.py
index 396a8ec95..3a84869cf 100644
--- a/tests/clients/test_dapr_grpc_request.py
+++ b/tests/clients/test_dapr_grpc_request.py
@@ -27,6 +27,29 @@
 
 
 class InvokeMethodRequestTests(unittest.TestCase):
+    def test_patch_http_verb(self):
+        req = InvokeMethodRequest(data=b'{"name": "updated"}')
+
+        req.http_verb = 'PATCH'
+
+        self.assertEqual('PATCH', req.http_verb)
+        self.assertTrue(req.is_http())
+
+    def test_invalid_http_verb(self):
+        req = InvokeMethodRequest()
+
+        with self.assertRaises(ValueError):
+            req.http_verb = 'INVALID'
+
+    def test_clear_http_verb(self):
+        req = InvokeMethodRequest()
+        req.http_verb = 'POST'
+
+        req.http_verb = None
+
+        self.assertIsNone(req.http_verb)
+        self.assertFalse(req.is_http())
+
     def test_bytes_data(self):
         # act
         req = InvokeMethodRequest(data=b'hello dapr')