diff --git a/lib/systems/examples.nix b/lib/systems/examples.nix
index 40e2b8fcefb..5403f73405c 100644
--- a/lib/systems/examples.nix
+++ b/lib/systems/examples.nix
@@ -47,7 +47,7 @@ rec {
   armv7a-android-prebuilt = {
     config = "armv7a-unknown-linux-androideabi";
     sdkVer = "29";
-    ndkVer = "18b";
+    ndkVer = "21";
     platform = platforms.armv7a-android;
     useAndroidPrebuilt = true;
   };
@@ -55,7 +55,7 @@ rec {
   aarch64-android-prebuilt = {
     config = "aarch64-unknown-linux-android";
     sdkVer = "29";
-    ndkVer = "18b";
+    ndkVer = "21";
     platform = platforms.aarch64-multiplatform;
     useAndroidPrebuilt = true;
   };