diff --git a/gpu-dawn/.github/workflows/ci.yml b/gpu-dawn/.github/workflows/ci.yml
index 0b19d89c..7913fa99 100644
--- a/gpu-dawn/.github/workflows/ci.yml
+++ b/gpu-dawn/.github/workflows/ci.yml
@@ -155,6 +155,7 @@ jobs:
         uses: actions/checkout@v2
       - name: Setup Zig
         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_64-0.10.0-dev.1107+7deadf430.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
       - name: Clone mach-glfw
@@ -178,6 +179,7 @@ jobs:
         uses: actions/checkout@v2
       - name: Setup Zig
         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_64-0.10.0-dev.1107+7deadf430.tar.xz -O - | tar -xJ --strip-components=1 -C /usr/local/bin'
       - name: Clone mach-glfw