diff --git a/.github/workflows/ag-solo-xs.yml.DISABLED b/.github/workflows/ag-solo-xs.yml.DISABLED
index b11d5810f9be..babff3a94480 100644
--- a/.github/workflows/ag-solo-xs.yml.DISABLED
+++ b/.github/workflows/ag-solo-xs.yml.DISABLED
@@ -18,7 +18,7 @@ jobs:
     - uses: actions/checkout@v2
     - uses: actions/setup-node@v1
       with:
-        node-version: '12.x'
+        node-version: '14.x'
     - name: cache node modules
       uses: actions/cache@v1
       with:
diff --git a/.github/workflows/integration.yml b/.github/workflows/integration.yml
index 3c3e9afb149f..5bf354bd61f9 100644
--- a/.github/workflows/integration.yml
+++ b/.github/workflows/integration.yml
@@ -17,7 +17,7 @@ jobs:
 
     - uses: actions/setup-node@v1
       with:
-        node-version: '12.x'
+        node-version: '14.x'
     - name: cache node modules
       uses: actions/cache@v1
       with:
diff --git a/.github/workflows/test-all-packages.yml b/.github/workflows/test-all-packages.yml
index 5148036bca38..f2ff1c3312c8 100644
--- a/.github/workflows/test-all-packages.yml
+++ b/.github/workflows/test-all-packages.yml
@@ -14,7 +14,8 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['12.x', '14.x']
+        # TODO: ['14.x', '16.x']
+        node-version: ['14.x']
     steps:
     - uses: actions/checkout@v2
       with:
@@ -51,7 +52,8 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['12.x']
+        # note: only use one node-version
+        node-version: 14.x
     steps:
     - uses: actions/setup-node@v1
       with:
@@ -83,7 +85,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['14.x']
+        node-version: 14.x
     if: ${{github.event_name == 'push' && github.ref == 'refs/heads/master'}}
     steps:
     - uses: actions/setup-node@v1
@@ -122,7 +124,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['14.x']
+        node-version: 14.x
     if: ${{github.event_name == 'push' && github.ref == 'refs/heads/master'}}
     steps:
     - uses: actions/setup-node@v1
@@ -177,7 +179,8 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['12.x', '14.x']
+        # TODO: ['14.x', '16.x']
+        node-version: ['14.x']
     steps:
     - uses: actions/setup-node@v1
       with:
@@ -306,7 +309,8 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['12.x', '14.x']
+        # TODO: ['14.x', '16.x']
+        node-version: ['14.x']
     steps:
     - uses: actions/setup-node@v1
       with:
@@ -372,7 +376,8 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['12.x', '14.x']
+        # TODO: ['14.x', '16.x']
+        node-version: ['14.x']
     steps:
     - uses: actions/setup-node@v1
       with:
@@ -410,7 +415,8 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['12.x', '14.x']
+        # TODO: ['14.x', '16.x']
+        node-version: ['14.x']
     steps:
     - uses: actions/setup-node@v1
       with:
@@ -457,7 +463,8 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['12.x', '14.x']
+        # TODO: ['14.x', '16.x']
+        node-version: ['14.x']
     steps:
     - uses: actions/setup-node@v1
       with:
@@ -502,7 +509,8 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['12.x', '14.x']
+        # TODO: ['14.x', '16.x']
+        node-version: ['14.x']
     steps:
     - uses: actions/setup-node@v1
       with:
@@ -540,7 +548,8 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: ['14.x']
+        # note: only use one node-version, maybe
+        node-version: 14.x
     steps:
     - uses: actions/setup-node@v1
       with:
diff --git a/README.md b/README.md
index cf7f8806dc75..6c8cbc73ccbe 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,8 @@ to use.
 ## Prerequisites
 
 * Git
-* Node.js (version 12.14.1 or higher)
+* Node.js LTS (version 14.15.0 or higher)
+  * we generally support the latest LTS release: use [nvm](https://github.com/nvm-sh/nvm) to keep your local system up-to-date
 * Yarn (`npm install -g yarn`)
 
 Any version of Yarn will do: the `.yarnrc` file should ensure that all
diff --git a/package.json b/package.json
index 39b64ac2d60d..5eb587dbb47b 100644
--- a/package.json
+++ b/package.json
@@ -63,7 +63,7 @@
     "typescript": "^4.2.3"
   },
   "engines": {
-    "node": ">=12.14.1"
+    "node": ">=14.15.0"
   },
   "scripts": {
     "OFF-clean": "yarn workspaces run clean",