diff --git a/.github/workflows/cli-test.yml b/.github/workflows/cli-test.yml
index fb8908d5c..db05ecf9b 100644
--- a/.github/workflows/cli-test.yml
+++ b/.github/workflows/cli-test.yml
@@ -62,7 +62,7 @@ jobs:
 
       - uses: actions/setup-node@v3
         with:
-          node-version: '18.15.0'
+          node-version: '16.17.1'
           cache: 'npm'
           cache-dependency-path: extensions/ql-vscode/package-lock.json
 
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index ce947acd6..98a1b4913 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -22,7 +22,7 @@ jobs:
 
       - uses: actions/setup-node@v3
         with:
-          node-version: '18.15.0'
+          node-version: '16.17.1'
           cache: 'npm'
           cache-dependency-path: extensions/ql-vscode/package-lock.json
 
@@ -64,7 +64,7 @@ jobs:
 
       - uses: actions/setup-node@v3
         with:
-          node-version: '18.15.0'
+          node-version: '16.17.1'
           cache: 'npm'
           cache-dependency-path: extensions/ql-vscode/package-lock.json
 
@@ -113,7 +113,7 @@ jobs:
 
       - uses: actions/setup-node@v3
         with:
-          node-version: '18.15.0'
+          node-version: '16.17.1'
           cache: 'npm'
           cache-dependency-path: extensions/ql-vscode/package-lock.json
 
@@ -147,7 +147,7 @@ jobs:
 
       - uses: actions/setup-node@v3
         with:
-          node-version: '18.15.0'
+          node-version: '16.17.1'
           cache: 'npm'
           cache-dependency-path: extensions/ql-vscode/package-lock.json
 
@@ -215,7 +215,7 @@ jobs:
 
       - uses: actions/setup-node@v3
         with:
-          node-version: '18.15.0'
+          node-version: '16.17.1'
           cache: 'npm'
           cache-dependency-path: extensions/ql-vscode/package-lock.json
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 964983b18..aca4d563e 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -22,7 +22,7 @@ jobs:
 
       - uses: actions/setup-node@v3
         with:
-          node-version: '18.15.0'
+          node-version: '16.17.1'
 
       - name: Install dependencies
         run: |
diff --git a/extensions/ql-vscode/.nvmrc b/extensions/ql-vscode/.nvmrc
index e048c8ca1..e0325e5ad 100644
--- a/extensions/ql-vscode/.nvmrc
+++ b/extensions/ql-vscode/.nvmrc
@@ -1 +1 @@
-v18.15.0
+v16.17.1
diff --git a/extensions/ql-vscode/package-lock.json b/extensions/ql-vscode/package-lock.json
index 16c4a1952..1e0434394 100644
--- a/extensions/ql-vscode/package-lock.json
+++ b/extensions/ql-vscode/package-lock.json
@@ -147,7 +147,7 @@
         "webpack-cli": "^5.0.1"
       },
       "engines": {
-        "node": "^18.15.0",
+        "node": "^16.17.1",
         "npm": ">=7.20.6",
         "vscode": "^1.67.0"
       }
diff --git a/extensions/ql-vscode/package.json b/extensions/ql-vscode/package.json
index 4ac252be8..25faa1fd0 100644
--- a/extensions/ql-vscode/package.json
+++ b/extensions/ql-vscode/package.json
@@ -14,7 +14,7 @@
   },
   "engines": {
     "vscode": "^1.67.0",
-    "node": "^18.15.0",
+    "node": "^16.17.1",
     "npm": ">=7.20.6"
   },
   "categories": [