diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7229a74..793f62b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node: [18, 20, 22]
+        node: [20, 22]
     steps:
       - name: Set git to use LF
         run: |
diff --git a/README.md b/README.md
index 62b3624..72fe633 100644
--- a/README.md
+++ b/README.md
@@ -9,9 +9,9 @@ Eleventy plugin which provides common filters, shortcodes and transforms for [Fl
 
 ## Requirements
 
-- Node >= 18
-- Eleventy >= 2.0.1
-- Infusion >= 4.6.0
+- Node >= 20
+- Eleventy >= 3.0.0-beta.1
+- Infusion >= 4.7.1
 
 ## Installation
 
diff --git a/package.json b/package.json
index 38a3a5c..2cef9d3 100644
--- a/package.json
+++ b/package.json
@@ -51,6 +51,9 @@
     "rosetta": "^1.1.0",
     "rtl-detect": "^1.1.2"
   },
+  "engines": {
+    "node": ">=20"
+  },
   "peerDependencies": {
     "infusion": "^4.7.1"
   },