diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bfc0575..e431194 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,6 +10,11 @@ env:
   CARGO_TERM_COLOR: always
   RUSTFLAGS: -Dwarnings
 
+env:
+  # GitHub Actions runner Node 20 -> Node 24 deprecation (effective 2026-06-02).
+  # Forces JS-based actions onto Node 24 ahead of the cutover.
+  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true
+
 jobs:
   test:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 755d718..d252d7c 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -9,6 +9,11 @@ permissions:
   contents: write
   id-token: write
 
+env:
+  # GitHub Actions runner Node 20 -> Node 24 deprecation (effective 2026-06-02).
+  # Forces JS-based actions onto Node 24 ahead of the cutover.
+  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true
+
 jobs:
   build:
     name: build ${{ matrix.target }}