diff --git a/llvm/utils/gn/build/toolchain/compiler.gni b/llvm/utils/gn/build/toolchain/compiler.gni
--- a/llvm/utils/gn/build/toolchain/compiler.gni
+++ b/llvm/utils/gn/build/toolchain/compiler.gni
@@ -10,7 +10,7 @@
   # Example value: getenv("HOME") + "/src/llvm-build/Release+Asserts"
   clang_base_path = ""
 
-  # Set this to the path to Android NDK r19. If set, cross compilation targeting
+  # Set this to the path to Android NDK r21. If set, cross compilation targeting
   # Android will be enabled.
   android_ndk_path = ""
 }
diff --git a/llvm/utils/gn/secondary/llvm/triples.gni b/llvm/utils/gn/secondary/llvm/triples.gni
--- a/llvm/utils/gn/secondary/llvm/triples.gni
+++ b/llvm/utils/gn/secondary/llvm/triples.gni
@@ -14,11 +14,11 @@
   }
 } else if (current_cpu == "arm") {
   if (current_os == "android") {
-    llvm_current_triple = "arm-linux-androideabi"
+    llvm_current_triple = "arm-linux-androideabi29"
   }
 } else if (current_cpu == "arm64") {
   if (current_os == "android") {
-    llvm_current_triple = "aarch64-linux-android21"
+    llvm_current_triple = "aarch64-linux-android29"
   }
 } else if (current_cpu == "ppc64") {
   if (current_os == "linux") {