diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1e45fcf0..58607640 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,7 +28,7 @@ jobs:
       - name: Setup Zig
         run: |
           sudo apt install xz-utils
-          sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-x86_64-0.11.0-dev.3883+7166407d8.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
+          sudo sh -c 'wget -c https://ziglang.org/builds/zig-linux-x86_64-0.11.0-dev.3947+89396ff02.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
       # - name: x86_64-linux -> x86_64-linux-musl
       #   if: matrix.project == 'libs/freetype' || matrix.project == 'libs/glfw'
       #   run: zig build -Dtarget=x86_64-linux-musl
@@ -59,10 +59,10 @@ jobs:
       - name: Setup Zig
         run: |
           $ProgressPreference = 'SilentlyContinue'
-          Invoke-WebRequest -Uri 'https://ziglang.org/builds/zig-windows-x86_64-0.11.0-dev.3883+7166407d8.zip' -OutFile 'C:\zig.zip'
+          Invoke-WebRequest -Uri 'https://ziglang.org/builds/zig-windows-x86_64-0.11.0-dev.3947+89396ff02.zip' -OutFile 'C:\zig.zip'
           cd C:\
           7z x zig.zip
-          Add-Content $env:GITHUB_PATH 'C:\zig-windows-x86_64-0.11.0-dev.3883+7166407d8\'
+          Add-Content $env:GITHUB_PATH 'C:\zig-windows-x86_64-0.11.0-dev.3947+89396ff02\'
       - name: test
         run: zig build test
   x86_64-macos:
@@ -79,6 +79,6 @@ jobs:
         run: |
           brew uninstall --ignore-dependencies libx11 # https://github.com/ziglang/zig/issues/11066
           brew install xz
-          sudo sh -c 'wget -c https://ziglang.org/builds/zig-macos-x86_64-0.11.0-dev.3883+7166407d8.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
+          sudo sh -c 'wget -c https://ziglang.org/builds/zig-macos-x86_64-0.11.0-dev.3947+89396ff02.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
       - name: test
         run: zig build test
diff --git a/README.md b/README.md
index e1b9c4d2..28477174 100644
--- a/README.md
+++ b/README.md
@@ -77,12 +77,12 @@ Mach is still early stages, so far we have support for building from the followi
 
 Mach works with the new self-hosted Zig compiler only. This means you'll need to use the latest Zig nightly version.
 
-Currently we test using `0.11.0-dev.3883+7166407d8`. Newer is generally better, but you can download this version here:
+Currently we test using `0.11.0-dev.3947+89396ff02`. Newer is generally better, but you can download this version here:
 
-- **linux-x86_64**: https://ziglang.org/builds/zig-linux-x86_64-0.11.0-dev.3883+7166407d8.tar.xz
-- **windows-x86_64**: https://ziglang.org/builds/zig-windows-x86_64-0.11.0-dev.3883+7166407d8.zip
-- **macos-x86_64** (Intel): https://ziglang.org/builds/zig-macos-x86_64-0.11.0-dev.3883+7166407d8.tar.xz
-- **macos-aarch64** (Apple Silicon): https://ziglang.org/builds/zig-macos-aarch64-0.11.0-dev.3883+7166407d8.tar.xz
+- **linux-x86_64**: https://ziglang.org/builds/zig-linux-x86_64-0.11.0-dev.3947+89396ff02.tar.xz
+- **windows-x86_64**: https://ziglang.org/builds/zig-windows-x86_64-0.11.0-dev.3947+89396ff02.zip
+- **macos-x86_64** (Intel): https://ziglang.org/builds/zig-macos-x86_64-0.11.0-dev.3947+89396ff02.tar.xz
+- **macos-aarch64** (Apple Silicon): https://ziglang.org/builds/zig-macos-aarch64-0.11.0-dev.3947+89396ff02.tar.xz
 
 ## Contributing