diff --git a/.github/actions/install/action.yml b/.github/actions/install/action.yml
index bf29a12a..344b3cb2 100644
--- a/.github/actions/install/action.yml
+++ b/.github/actions/install/action.yml
@@ -36,6 +36,7 @@ runs:
 
     # Zig version used from the `minimum_zig_version` field in build.zig.zon
     - uses: mlugg/setup-zig@v2
+
     # Rust Toolchain for html5ever
     - uses: dtolnay/rust-toolchain@stable
 
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 609a9b8b..3ef3a04f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -26,7 +26,7 @@ jobs:
     timeout-minutes: 15
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           # fetch submodules recusively, to get zig-js-runtime submodules also.
diff --git a/.github/workflows/e2e-test.yml b/.github/workflows/e2e-test.yml
index b88da652..c9e0271a 100644
--- a/.github/workflows/e2e-test.yml
+++ b/.github/workflows/e2e-test.yml
@@ -49,7 +49,7 @@ jobs:
     if: github.event.pull_request.draft == false
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           # fetch submodules recusively, to get zig-js-runtime submodules also.
diff --git a/.github/workflows/wpt.yml b/.github/workflows/wpt.yml
index 205c63ae..489bd8dd 100644
--- a/.github/workflows/wpt.yml
+++ b/.github/workflows/wpt.yml
@@ -22,7 +22,7 @@ jobs:
     timeout-minutes: 90
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           # fetch submodules recusively, to get zig-js-runtime submodules also.
diff --git a/.github/workflows/zig-fmt.yml b/.github/workflows/zig-fmt.yml
index 106e557a..a6df7e1f 100644
--- a/.github/workflows/zig-fmt.yml
+++ b/.github/workflows/zig-fmt.yml
@@ -1,8 +1,5 @@
 name: zig-fmt
 
-env:
-  ZIG_VERSION: 0.15.2
-
 on:
   pull_request:
 
@@ -32,14 +29,13 @@ jobs:
     timeout-minutes: 15
 
     steps:
-      - uses: mlugg/setup-zig@v2
-        with:
-          version: ${{ env.ZIG_VERSION }}
-
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
+      # Zig version used from the `minimum_zig_version` field in build.zig.zon
+      - uses: mlugg/setup-zig@v2
+
       - name: Run zig fmt
         id: fmt
         run: |
@@ -58,6 +54,7 @@ jobs:
           fi
 
           echo "${delimiter}" >> "${GITHUB_OUTPUT}"
+
       - name: Fail the job
         if: steps.fmt.outputs.zig_fmt_errs != ''
         run: exit 1
diff --git a/.github/workflows/zig-test.yml b/.github/workflows/zig-test.yml
index db54a893..f30a68e3 100644
--- a/.github/workflows/zig-test.yml
+++ b/.github/workflows/zig-test.yml
@@ -47,10 +47,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
-          # fetch submodules recusively, to get zig-js-runtime submodules also.
           submodules: recursive
 
       - uses: ./.github/actions/install
diff --git a/Makefile b/Makefile
index 8f391d20..7404367f 100644
--- a/Makefile
+++ b/Makefile
@@ -47,18 +47,7 @@ help:
 
 # $(ZIG) commands
 # ------------
-.PHONY: build build-dev run run-release shell test bench download-zig wpt data
-.PHONY: end2end
-
-zig_version = $(shell grep 'recommended_zig_version = "' "vendor/zig-js-runtime/build.zig" | cut -d'"' -f2)
-
-## Download the zig recommended version
-download-zig:
-	$(eval url = "https://ziglang.org/download/$(zig_version)/zig-$(OS)-$(ARCH)-$(zig_version).tar.xz")
-	$(eval dest = "/tmp/zig-$(OS)-$(ARCH)-$(zig_version).tar.xz")
-	@printf "\033[36mDownload zig version $(zig_version)...\033[0m\n"
-	@curl -o "$(dest)" -L "$(url)" || (printf "\033[33mBuild ERROR\033[0m\n"; exit 1;)
-	@printf "\033[33mDownloaded $(dest)\033[0m\n"
+.PHONY: build build-dev run run-release shell test bench wpt data end2end
 
 ## Build in release-safe mode
 build:
diff --git a/build.zig.zon b/build.zig.zon
index e2069f79..9f6a65c5 100644
--- a/build.zig.zon
+++ b/build.zig.zon
@@ -2,7 +2,7 @@
     .name = .browser,
     .paths = .{""},
     .version = "0.0.0",
-    .fingerprint = 0xda130f3af836cea0,
+    .fingerprint = 0xda130f3af836cea0, // Changing this has security and trust implications.
     .minimum_zig_version = "0.15.2",
     .dependencies = .{
         .v8 = .{