diff --git a/.github/workflows/build-microzig.yml b/.github/workflows/build-microzig.yml
index 10bd3eb1..925e0a33 100644
--- a/.github/workflows/build-microzig.yml
+++ b/.github/workflows/build-microzig.yml
@@ -29,7 +29,7 @@ jobs:
     name: Build
     uses: ./.github/workflows/build-base.yml
     with:
-      zig-version: 0.13.0
+      zig-version: ${{ vars.MZ_TARGET_ZIG_VERSION }}
       get-submodules: true
       is-packaged: true
       zig-args: -Doptimize=ReleaseSmall
diff --git a/.github/workflows/publish-microzig.yml b/.github/workflows/publish-microzig.yml
index 28c42222..c2ad9e7c 100644
--- a/.github/workflows/publish-microzig.yml
+++ b/.github/workflows/publish-microzig.yml
@@ -17,7 +17,7 @@ jobs:
       group: build
       cancel-in-progress: true
     with:
-      zig-version: 0.13.0
+      zig-version: ${{ vars.MZ_TARGET_ZIG_VERSION }}
       get-submodules: true
       is-packaged: true
       target-os: macOS
@@ -33,7 +33,7 @@ jobs:
     with:
       in-gh-artifact-name: microzig-build
       out-gh-artifact-name: microzig-alt
-      zig-version: 0.13.0
+      zig-version: ${{ vars.MZ_TARGET_ZIG_VERSION }}
       microzig-version: ${{ needs.build-microzig.outputs.version }}
   # Publish microzig
   publish-microzig:
diff --git a/.github/workflows/publish-website-staging.yml b/.github/workflows/publish-website-staging.yml
index d700aa50..ceb2e761 100644
--- a/.github/workflows/publish-website-staging.yml
+++ b/.github/workflows/publish-website-staging.yml
@@ -16,7 +16,7 @@ jobs:
   build-website:
     uses: ./.github/workflows/build-base.yml
     with:
-      zig-version: 0.13.0
+      zig-version: ${{ vars.WS_TARGET_ZIG_VERSION }}
       get-submodules: true
       target-os: Linux
       github-artifact-name: website-build
diff --git a/.github/workflows/publish-website.yml b/.github/workflows/publish-website.yml
index fb4df430..0d5cedbf 100644
--- a/.github/workflows/publish-website.yml
+++ b/.github/workflows/publish-website.yml
@@ -16,7 +16,7 @@ jobs:
   build-website:
     uses: ./.github/workflows/build-base.yml
     with:
-      zig-version: 0.13.0
+      zig-version: ${{ vars.WS_TARGET_ZIG_VERSION }}
       get-submodules: true
       target-os: Linux
       github-artifact-name: website-build