diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a8eb26e5..a3d8e7c2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -3,7 +3,7 @@
 
 name: Node.js CI
 env:
-  NODE_VERSION: "18"
+  NODE_VERSION: "20"
 
 on: [push]
 
diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index 138329f9..679353a1 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -1,7 +1,7 @@
 name: github pages
 
 env:
-  NODE_VERSION: "18"
+  NODE_VERSION: "20"
 
 on:
   schedule:
@@ -19,7 +19,7 @@ jobs:
 
       - name: Cache dependencies
 
-        uses: actions/cache@v1
+        uses: actions/cache@v4
         with:
           path: ~/.npm
           key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index e95f707b..f4a4d920 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -3,7 +3,7 @@
 
 name: NPM Package
 env:
-  NODE_VERSION: "18"
+  NODE_VERSION: "20"
 on:
   push:
     # Sequence of patterns matched against refs/tags