diff --git a/cmake/external_libs/cmsis.cmake b/cmake/external_libs/cmsis.cmake
index 98fe09c8538..858b976d89c 100644
--- a/cmake/external_libs/cmsis.cmake
+++ b/cmake/external_libs/cmsis.cmake
@@ -2,7 +2,7 @@ set(cmsis_pkg_name cmsis)
 
 if(ENABLE_GITEE)
     set(REQ_URL "https://gitee.com/mirrors/CMSIS_5/repository/archive/5.7.0.tar.gz")
-    set(MD5 "feb96c10a99bd0eb54fb7ce49af8d285")
+    set(MD5 "0eaa594b0c62dd72e41ec181c4689842")
 else()
     set(REQ_URL "https://github.com/ARM-software/CMSIS_5/archive/5.7.0.tar.gz")
     set(MD5 "0eaa594b0c62dd72e41ec181c4689842")
diff --git a/cmake/external_libs/flatbuffers.cmake b/cmake/external_libs/flatbuffers.cmake
index 444850343fe..b194f20dafc 100644
--- a/cmake/external_libs/flatbuffers.cmake
+++ b/cmake/external_libs/flatbuffers.cmake
@@ -13,7 +13,7 @@ endif()
 
 if(ENABLE_GITEE)
     set(REQ_URL "https://gitee.com/mirrors/flatbuffers/repository/archive/v2.0.0.tar.gz")
-    set(MD5 "4181afaa9c279bd6c690a36bc15a23d2")
+    set(MD5 "5c23d17c0486b81d4c11907e8f7bf36b")
 else()
     set(REQ_URL "https://github.com/google/flatbuffers/archive/v2.0.0.tar.gz")
     set(MD5 "a27992324c3cbf86dd888268a23d17bd")
diff --git a/cmake/external_libs/opencl.cmake b/cmake/external_libs/opencl.cmake
index 95961e69617..c367f481a73 100644
--- a/cmake/external_libs/opencl.cmake
+++ b/cmake/external_libs/opencl.cmake
@@ -1,10 +1,10 @@
 if(ENABLE_GITEE)
     set(REQ_URL "https://gitee.com/mirrors/OpenCL-Headers/repository/archive/v2020.12.18.tar.gz")
-    set(MD5 "34e4ec0a23aaa7960523a0ab4853b647")
+    set(MD5 "9a34e50198ac54b795bf3822bb6e429a")
     set(PKG_GIT_TAG "")
     __download_pkg_with_git(OpenCL-Headers ${REQ_URL} ${PKG_GIT_TAG} ${MD5})
     set(REQ_URL "https://gitee.com/mirrors/OpenCL-CLHPP/repository/archive/v2.0.12.tar.gz")
-    set(MD5 "7a07baf1c9776e40e93abaf8f4ac2859")
+    set(MD5 "3439d8eb6d247bfd02164bcd0c8e5adb")
     set(PKG_GIT_TAG "")
     __download_pkg_with_git(OpenCL-CLHPP ${REQ_URL} ${PKG_GIT_TAG} ${MD5})
 else()