diff --git a/.appveyor.yml b/.appveyor.yml
index cb88fd7..70ba3d0 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -3,7 +3,7 @@ clone_folder: c:\projects\gn-build\build
 shallow_clone: true
 
 environment:
-  GN_WIN_URL: https://github.com/timniederhausen/gn/releases/download/2020.03/gn-win-amd64.zip
+  GN_WIN_URL: https://github.com/timniederhausen/gn/releases/download/2021.03/gn-win-amd64.zip
 
   matrix:
     - GN_ARGS: "visual_studio_version=\\\"2013\\\""
diff --git a/.github/workflows/posix.yml b/.github/workflows/posix.yml
index 5ef9322..feb963c 100644
--- a/.github/workflows/posix.yml
+++ b/.github/workflows/posix.yml
@@ -17,7 +17,7 @@ on:
 
 env:
   NINJA_BASE_URL: https://github.com/ninja-build/ninja/releases/download/
-  GN_BASE_URL: https://github.com/timniederhausen/gn/releases/download/2020.09/
+  GN_BASE_URL: https://github.com/timniederhausen/gn/releases/download/2021.03/
 
 jobs:
   posix: