diff --git a/README.android b/README.android
index a6471036..bf69a393 100644
--- a/README.android
+++ b/README.android
@@ -38,7 +38,7 @@ See `the online manual
 Notes
 -----
 
-aria2c executable was generated using android-ndk-r9.
+aria2c executable was generated using android-ndk-r9d.
 
 The following libraries were statically linked.
 
diff --git a/README.mingw b/README.mingw
index 91506adf..8d98c365 100644
--- a/README.mingw
+++ b/README.mingw
@@ -5,7 +5,7 @@ aria2 Windows build is provided in 2 flavors: 32bit version and 64bit
 version. The executable was compiled using mingw-w64 cross compiler on
 Debian Linux.
 
-* gcc-mingw-w64               4.8.2-11+12
+* gcc-mingw-w64               4.9.0-2+13
 * binutils-mingw-w64-i686     2.24-2+3+b1
 * binutils-mingw-w64-x86-64   2.24-2+3+b1