diff --git a/backport-grpc-1.41.1-python-grpcio-use-system-abseil.patch b/backport-grpc-1.41.1-python-grpcio-use-system-abseil.patch
deleted file mode 100644
index 9d406aa368655e38d8d2e1fd0329e67a09173e4f..0000000000000000000000000000000000000000
--- a/backport-grpc-1.41.1-python-grpcio-use-system-abseil.patch
+++ /dev/null
@@ -1,46 +0,0 @@
-diff -Naur grpc-1.40.0-original/setup.py grpc-1.40.0/setup.py
---- grpc-1.40.0-original/setup.py	2021-09-03 19:20:52.000000000 -0400
-+++ grpc-1.40.0/setup.py	2021-09-07 14:57:55.247990450 -0400
-@@ -29,6 +29,7 @@
- from distutils import util
- import os
- import os.path
-+import pathlib
- import platform
- import re
- import shlex
-@@ -154,6 +155,11 @@
- # runtime, the shared library must be installed
- BUILD_WITH_SYSTEM_RE2 = _env_bool_value('GRPC_PYTHON_BUILD_SYSTEM_RE2', 'False')
- 
-+# Export this variable to use the system installation of abseil. You need to
-+# have the header files installed (in /usr/include/absl) and during
-+# runtime, the shared library must be installed
-+BUILD_WITH_SYSTEM_ABSL = os.environ.get('GRPC_PYTHON_BUILD_SYSTEM_ABSL', False)
-+
- # Export this variable to force building the python extension with a statically linked libstdc++.
- # At least on linux, this is normally not needed as we can build manylinux-compatible wheels on linux just fine
- # without statically linking libstdc++ (which leads to a slight increase in the wheel size).
-@@ -296,6 +302,10 @@
-     CORE_C_FILES = filter(lambda x: 'third_party/re2' not in x, CORE_C_FILES)
-     RE2_INCLUDE = (os.path.join('/usr', 'include', 're2'),)
- 
-+if BUILD_WITH_SYSTEM_ABSL:
-+    CORE_C_FILES = filter(lambda x: 'third_party/abseil-cpp' not in x, CORE_C_FILES)
-+    ABSL_INCLUDE = (os.path.join('/usr', 'include'),)
-+
- EXTENSION_INCLUDE_DIRECTORIES = ((PYTHON_STEM,) + CORE_INCLUDE + ABSL_INCLUDE +
-                                  ADDRESS_SORTING_INCLUDE + CARES_INCLUDE +
-                                  RE2_INCLUDE + SSL_INCLUDE + UPB_INCLUDE +
-@@ -325,6 +335,10 @@
-     EXTENSION_LIBRARIES += ('cares',)
- if BUILD_WITH_SYSTEM_RE2:
-     EXTENSION_LIBRARIES += ('re2',)
-+if BUILD_WITH_SYSTEM_ABSL:
-+    EXTENSION_LIBRARIES += tuple(
-+        lib.stem[3:] for lib in pathlib.Path('/usr').glob('lib*/libabsl_*.so')
-+    )
- 
- DEFINE_MACROS = (('_WIN32_WINNT', 0x600),)
- asm_files = []
-
diff --git a/grpc-1.41.1.tar.gz b/grpc-1.50.1.tar.gz
similarity index 51%
rename from grpc-1.41.1.tar.gz
rename to grpc-1.50.1.tar.gz
index f7fe9a2de0ecd6b1f152212dc36ddaeb6f0fc01e..cdf67ed980b1f920f834d512d24ae5a167cb3ac1 100644
Binary files a/grpc-1.41.1.tar.gz and b/grpc-1.50.1.tar.gz differ
diff --git a/grpc.spec b/grpc.spec
index 476b7a54bf303b5a74412382af6a9d7fe7ecd1cc..b0bc03bc799573488795e2f66a41ccc5b20b6a8d 100644
--- a/grpc.spec
+++ b/grpc.spec
@@ -1,9 +1,9 @@
-%global c_so_version 19
-%global cpp_so_version 1.41
+%global c_so_version 28
+%global cpp_so_version 1.50
 
 Name:          grpc
-Version:       1.41.1
-Release:       4
+Version:       1.50.1
+Release:       1
 Summary:       A modern, open source high performance RPC framework that can run in any environment
 License:       ASL 2.0
 URL:           https://www.grpc.io
@@ -11,7 +11,6 @@ Source0:       https://github.com/grpc/grpc/archive/v%{version}/%{name}-%{versio
 
 Patch0006:     repair-pkgconfig-path.patch
 Patch0007:     add-secure-compile-option-in-Makefile.patch
-Patch0010:     backport-grpc-1.41.1-python-grpcio-use-system-abseil.patch
 
 BuildRequires: gcc-c++ pkgconfig protobuf-devel protobuf-compiler
 BuildRequires: openssl-devel c-ares-devel gtest-devel zlib-devel gperftools-devel
@@ -58,6 +57,8 @@ Python3 bindings for gRPC.
 sed -i 's:^prefix ?= .*:prefix ?= %{_prefix}:' Makefile
 sed -i 's:$(prefix)/lib:$(prefix)/%{_lib}:' Makefile
 sed -i 's:^GTEST_LIB =.*::' Makefile
+#avoid downloading
+mkdir  %{_builddir}/%{name}-%{version}/third_party/opencensus-proto/src
 
 %build
 mkdir -p cmake/build
@@ -138,6 +139,12 @@ cd ../..
 %{python3_sitearch}/grpcio-%{version}-py*
 
 %changelog
+* Fri Nov 11 2022 zhouyihang <zhouyihang3@h-partners.com> - 1.50.1-1
+- Type:requirement
+- ID:NA
+- SUG:NA
+- DESC:upgrade grpc to 1.50.1
+
 * Thu Oct 20 2022 zhouyihang <zhouyihang3@h-partners.com> - 1.41.1-4
 - Type:bugfix
 - ID:NA
diff --git a/repair-pkgconfig-path.patch b/repair-pkgconfig-path.patch
index 69056415552eb71d11112cbb4dbbfae79da5fca1..283a842054fa4c0f83e18aed8936a7517058c8c9 100644
--- a/repair-pkgconfig-path.patch
+++ b/repair-pkgconfig-path.patch
@@ -16,9 +16,9 @@ diff -urN grpc/CMakeLists.txt grpc_new/CMakeLists.txt
 --- grpc/CMakeLists.txt	2020-08-24 09:14:14.361862041 +0800
 +++ grpc_new/CMakeLists.txt	2020-08-27 14:50:00.371507303 +0800
 @@ -42,6 +42,7 @@
- set(gRPC_INSTALL_INCLUDEDIR "include" CACHE STRING "Installation directory for headers")
  set(gRPC_INSTALL_CMAKEDIR "lib/cmake/${PACKAGE_NAME}" CACHE STRING "Installation directory for cmake config files")
  set(gRPC_INSTALL_SHAREDIR "share/grpc" CACHE STRING "Installation directory for root certificates")
+ set(gRPC_BUILD_MSVC_MP_COUNT 0 CACHE STRING "The maximum number of processes for MSVC /MP option")
 +set(gRPC_INSTALL_PKGCONFIGDIR "lib/pkgconfig" CACHE STRING "Installation directory for pkgconfig")
  
  # Options
@@ -27,7 +27,7 @@ diff -urN grpc/CMakeLists.txt grpc_new/CMakeLists.txt
      "${output_filepath}"
      @ONLY)
    install(FILES "${output_filepath}"
--    DESTINATION "lib/pkgconfig/")
+-    DESTINATION "${gRPC_INSTALL_LIBDIR}/pkgconfig")
 +    DESTINATION ${gRPC_INSTALL_PKGCONFIGDIR})
  endfunction()