diff --git a/.buildchain/kfd-1/libnode-contract-world.witness.json b/.buildchain/kfd-1/libnode-contract-world.witness.json
index 81ffdf5..a713a57 100644
--- a/.buildchain/kfd-1/libnode-contract-world.witness.json
+++ b/.buildchain/kfd-1/libnode-contract-world.witness.json
@@ -49,9 +49,9 @@
     {
       "name": "buildchain-config",
       "sourcePath": "buildchain.toml",
-      "sourceSha256": "fbc596052c556a59812070ad5d5be093e51ba995cffa6e7b809eb60bbc8f54ae",
+      "sourceSha256": "66782a978e1914d076d81998a3678365ed7eedad407826ad0f7d8c2e69ad6c42",
       "artifactPath": "buildchain.toml",
-      "expectedSha256": "fbc596052c556a59812070ad5d5be093e51ba995cffa6e7b809eb60bbc8f54ae",
+      "expectedSha256": "66782a978e1914d076d81998a3678365ed7eedad407826ad0f7d8c2e69ad6c42",
       "byteForByte": true
     },
     {
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c5d7474..c8bf4aa 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -34,6 +34,7 @@ jobs:
       checkout-cache-mirror-url-template: ${{ vars.BUILDCHAIN_CHECKOUT_CACHE_MIRROR_URL_TEMPLATE }}
       checkout-cache-fallback: github
       checkout-cache-timeout-seconds: 60
+      lifecycle-timeout-minutes: 240
       setup-node: true
       node-version: '24'
       install-command: node .gyp/buildchain-install.js "${{ vars.KF_NODE_GIT_URL }}" "${{ vars.KF_NODE_REFERENCE }}"
diff --git a/.github/workflows/release-verify.yaml b/.github/workflows/release-verify.yaml
index 41a7be0..88191f4 100644
--- a/.github/workflows/release-verify.yaml
+++ b/.github/workflows/release-verify.yaml
@@ -32,6 +32,7 @@ jobs:
       checkout-cache-mirror-url-template: ${{ vars.BUILDCHAIN_CHECKOUT_CACHE_MIRROR_URL_TEMPLATE }}
       checkout-cache-fallback: github
       checkout-cache-timeout-seconds: 60
+      lifecycle-timeout-minutes: 240
       setup-node: true
       node-version: '24'
       install-command: node .gyp/buildchain-install.js "${{ vars.KF_NODE_GIT_URL }}" "${{ vars.KF_NODE_REFERENCE }}"
diff --git a/buildchain.toml b/buildchain.toml
index d7fb290..7231b19 100644
--- a/buildchain.toml
+++ b/buildchain.toml
@@ -57,7 +57,10 @@ cache_dirs = [
 ]
 
 [lifecycle.install]
-timeout_minutes = 10
+# Preparing the pinned Node.js source can transfer more than 1 GiB on a cold
+# macOS x64 runner. Keep this stage bounded while allowing slow GitHub fetches
+# to finish before the native build begins.
+timeout_minutes = 45
 commands = [
   "corepack pnpm install --frozen-lockfile --ignore-scripts",
   "corepack pnpm prepare-node-source",