diff --git a/.changeset/curly-zebras-lie.md b/.changeset/curly-zebras-lie.md
new file mode 100644
index 000000000..22078761c
--- /dev/null
+++ b/.changeset/curly-zebras-lie.md
@@ -0,0 +1,5 @@
+---
+'@open-wc/lit-helpers': minor
+---
+
+Support lit@2 and lit@3
diff --git a/package-lock.json b/package-lock.json
index 370a0d542..10e93445b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -39073,7 +39073,7 @@
       }
     },
     "packages/eslint-plugin-lit-a11y": {
-      "version": "4.1.1",
+      "version": "4.1.2",
       "license": "ISC",
       "dependencies": {
         "aria-query": "^5.1.3",
@@ -39107,7 +39107,7 @@
       "version": "0.6.0",
       "license": "MIT",
       "peerDependencies": {
-        "lit": "^2.0.0"
+        "lit": "^2.0.0 || ^3.0.0"
       }
     },
     "packages/scoped-elements": {
diff --git a/packages/lit-helpers/index.d.ts b/packages/lit-helpers/index.d.ts
index 4bf09a1cb..ffcc933bf 100644
--- a/packages/lit-helpers/index.d.ts
+++ b/packages/lit-helpers/index.d.ts
@@ -1,2 +1,2 @@
 export { ReadOnlyPropertiesMixin } from './src/read-only-properties-mixin';
-export { spread, spreadEvents, spreadProps } from './src/spread';
\ No newline at end of file
+export { spread, spreadEvents, spreadProps } from './src/spread.js';
\ No newline at end of file
diff --git a/packages/lit-helpers/package.json b/packages/lit-helpers/package.json
index 51a822ee3..12224ee7d 100644
--- a/packages/lit-helpers/package.json
+++ b/packages/lit-helpers/package.json
@@ -34,7 +34,7 @@
     "helpers"
   ],
   "peerDependencies": {
-    "lit": "^2.0.0"
+    "lit": "^2.0.0 || ^3.0.0"
   },
   "sideEffects": false
 }