diff --git a/debug/package.json b/debug/package.json
index 054944f5478a0a5cf7b6b8791950c595f956157b..06a4fe2719605eb42c5ee795101c21cfd10b59ce 100644
--- a/debug/package.json
+++ b/debug/package.json
@@ -9,6 +9,7 @@
 	"umd:main": "dist/debug.umd.js",
 	"source": "src/index.js",
 	"license": "MIT",
+	"type": "module",
 	"mangle": {
 		"regex": "^(?!_renderer)^_"
 	},
diff --git a/devtools/package.json b/devtools/package.json
index 09b04a77690bdfba01083939ff9eaf987dd50bcb..92c159fbb3cf312c6674202085fb237d6fb921ad 100644
--- a/devtools/package.json
+++ b/devtools/package.json
@@ -10,6 +10,7 @@
 	"source": "src/index.js",
 	"license": "MIT",
 	"types": "src/index.d.ts",
+	"type": "module",
 	"peerDependencies": {
 		"preact": "^10.0.0"
 	},
diff --git a/hooks/package.json b/hooks/package.json
index 74807025bf3de273ebada2cd355428a2c972503d..98501726ffbfe55ffa09928e56a9dcafb9a348ff 100644
--- a/hooks/package.json
+++ b/hooks/package.json
@@ -10,6 +10,7 @@
 	"source": "src/index.js",
 	"license": "MIT",
 	"types": "src/index.d.ts",
+	"type": "module",
 	"scripts": {
 		"build": "microbundle build --raw",
 		"dev": "microbundle watch --raw --format cjs",
diff --git a/jsx-runtime/package.json b/jsx-runtime/package.json
index 7a4027831223f16519a74e3028c34f2f8f5f011a..6b58d17dbacce81894467ef43c0a8e2435e388c4 100644
--- a/jsx-runtime/package.json
+++ b/jsx-runtime/package.json
@@ -10,6 +10,7 @@
 	"source": "src/index.js",
 	"types": "src/index.d.ts",
 	"license": "MIT",
+	"type": "module",
 	"peerDependencies": {
 		"preact": "^10.0.0"
 	},
diff --git a/package.json b/package.json
index 60279c24a08b808ffbf7dc64a038272bddb6785d..088f35fb2c92f2e9b7248557857af2839988d1aa 100644
--- a/package.json
+++ b/package.json
@@ -9,6 +9,7 @@
 	"umd:main": "dist/preact.umd.js",
 	"unpkg": "dist/preact.min.js",
 	"source": "src/index.js",
+	"type": "module",
 	"exports": {
 		".": {
 			"types": "./src/index.d.ts",