diff --git a/cmake/external_libs/flatbuffers.cmake b/cmake/external_libs/flatbuffers.cmake
index 21ec12d3c69..72b68bf6446 100644
--- a/cmake/external_libs/flatbuffers.cmake
+++ b/cmake/external_libs/flatbuffers.cmake
@@ -12,11 +12,11 @@ if(WIN32)
 endif()
 
 if(ENABLE_GITEE)
-    set(REQ_URL "https://gitee.com/mirrors/flatbuffers/repository/archive/v2.0.0.tar.gz")
-    set(MD5 "4181afaa9c279bd6c690a36bc15a23d2")
+    set(REQ_URL "https://gitee.com/mirrors/flatbuffers/repository/archive/v1.11.0.tar.gz")
+    set(MD5 "4051dc865063ffa724c4264dea8dbbe9")
 else()
-    set(REQ_URL "https://github.com/google/flatbuffers/archive/v2.0.0.tar.gz")
-    set(MD5 "a27992324c3cbf86dd888268a23d17bd")
+    set(REQ_URL "https://github.com/google/flatbuffers/archive/v1.11.0.tar.gz")
+    set(MD5 "02c64880acb89dbd57eebacfd67200d8")
 endif()
 
 if(APPLE)