diff --git a/clang/cmake/caches/Fuchsia-stage2.cmake b/clang/cmake/caches/Fuchsia-stage2.cmake
index be3d0cfa2e657..9df14d444eed6 100644
--- a/clang/cmake/caches/Fuchsia-stage2.cmake
+++ b/clang/cmake/caches/Fuchsia-stage2.cmake
@@ -58,7 +58,7 @@ set(CMAKE_CXX_VISIBILITY_PRESET default CACHE STRING "")
 
 set(CMAKE_BUILD_TYPE Release CACHE STRING "")
 if (APPLE)
-  set(CMAKE_OSX_DEPLOYMENT_TARGET "10.13" CACHE STRING "")
+  set(CMAKE_OSX_DEPLOYMENT_TARGET "11.0" CACHE STRING "")
 elseif(WIN32)
   set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded" CACHE STRING "")
 endif()
@@ -83,7 +83,7 @@ if(APPLE)
   set(LIBCXX_ENABLE_STATIC_ABI_LIBRARY ON CACHE BOOL "")
   set(LIBCXX_HARDENING_MODE "none" CACHE STRING "")
   set(LIBCXX_USE_COMPILER_RT ON CACHE BOOL "")
-  set(RUNTIMES_CMAKE_ARGS "-DCMAKE_OSX_DEPLOYMENT_TARGET=10.13;-DCMAKE_OSX_ARCHITECTURES=arm64|x86_64" CACHE STRING "")
+  set(RUNTIMES_CMAKE_ARGS "-DCMAKE_OSX_DEPLOYMENT_TARGET=11.0;-DCMAKE_OSX_ARCHITECTURES=arm64|x86_64" CACHE STRING "")
 endif()
 
 if(WIN32 OR LLVM_WINSYSROOT)
diff --git a/clang/cmake/caches/Fuchsia.cmake b/clang/cmake/caches/Fuchsia.cmake
index 46ae7c603f67a..83ff4ccc167d1 100644
--- a/clang/cmake/caches/Fuchsia.cmake
+++ b/clang/cmake/caches/Fuchsia.cmake
@@ -97,7 +97,7 @@ set(LLVM_ENABLE_ASSERTIONS ON CACHE BOOL "")
 set(LLVM_ENABLE_BACKTRACES ON CACHE BOOL "")
 set(CMAKE_BUILD_TYPE Release CACHE STRING "")
 if(APPLE)
-  set(CMAKE_OSX_DEPLOYMENT_TARGET "10.13" CACHE STRING "")
+  set(CMAKE_OSX_DEPLOYMENT_TARGET "11.0" CACHE STRING "")
 elseif(WIN32)
   set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded" CACHE STRING "")
 endif()
@@ -140,7 +140,7 @@ else()
   set(SANITIZER_TEST_CXX "libc++" CACHE STRING "")
   set(SANITIZER_TEST_CXX_INTREE ON CACHE BOOL "")
   set(LLVM_ENABLE_RUNTIMES "compiler-rt;libcxx;libcxxabi;libunwind" CACHE STRING "")
-  set(RUNTIMES_CMAKE_ARGS "-DCMAKE_OSX_DEPLOYMENT_TARGET=10.13;-DCMAKE_OSX_ARCHITECTURES=arm64|x86_64" CACHE STRING "")
+  set(RUNTIMES_CMAKE_ARGS "-DCMAKE_OSX_DEPLOYMENT_TARGET=11.0;-DCMAKE_OSX_ARCHITECTURES=arm64|x86_64" CACHE STRING "")
 endif()
 
 if(BOOTSTRAP_CMAKE_SYSTEM_NAME)