diff --git a/packages/inferno-animation/package.json b/packages/inferno-animation/package.json
index e310d2c86..bc66e2f9f 100644
--- a/packages/inferno-animation/package.json
+++ b/packages/inferno-animation/package.json
@@ -19,7 +19,8 @@
   },
   "homepage": "https://github.com/infernojs/inferno#readme",
   "files": [
-    "index.js",
+    "index.cjs",
+    "index.css",
     "dist/",
     "README.md",
     "package.json"
diff --git a/packages/inferno-clone-vnode/package.json b/packages/inferno-clone-vnode/package.json
index dd5c7e074..cf9dbf319 100644
--- a/packages/inferno-clone-vnode/package.json
+++ b/packages/inferno-clone-vnode/package.json
@@ -19,7 +19,7 @@
   },
   "homepage": "https://github.com/infernojs/inferno#readme",
   "files": [
-    "index.js",
+    "index.cjs",
     "dist/",
     "README.md",
     "package.json"
diff --git a/packages/inferno-compat/package.json b/packages/inferno-compat/package.json
index 324d92db7..0c2cd9357 100644
--- a/packages/inferno-compat/package.json
+++ b/packages/inferno-compat/package.json
@@ -18,7 +18,7 @@
   },
   "homepage": "https://github.com/infernojs/inferno#readme",
   "files": [
-    "index.js",
+    "index.cjs",
     "prop-types.js",
     "lib",
     "dist/",
diff --git a/packages/inferno-create-element/package.json b/packages/inferno-create-element/package.json
index 7d7921ae9..d1a2dd6cc 100644
--- a/packages/inferno-create-element/package.json
+++ b/packages/inferno-create-element/package.json
@@ -18,7 +18,7 @@
   },
   "homepage": "https://github.com/infernojs/inferno#readme",
   "files": [
-    "index.js",
+    "index.cjs",
     "dist/",
     "README.md",
     "package.json"
diff --git a/packages/inferno-extras/package.json b/packages/inferno-extras/package.json
index c0130e499..5436b2322 100644
--- a/packages/inferno-extras/package.json
+++ b/packages/inferno-extras/package.json
@@ -24,7 +24,7 @@
     "moduleName": "Inferno"
   },
   "files": [
-    "index.js",
+    "index.cjs",
     "dist/",
     "README.md",
     "package.json"
diff --git a/packages/inferno-hydrate/package.json b/packages/inferno-hydrate/package.json
index 34e2767d5..cd2d2c16a 100644
--- a/packages/inferno-hydrate/package.json
+++ b/packages/inferno-hydrate/package.json
@@ -19,7 +19,7 @@
   },
   "homepage": "https://github.com/infernojs/inferno#readme",
   "files": [
-    "index.js",
+    "index.cjs",
     "dist/",
     "README.md",
     "package.json"
diff --git a/packages/inferno-hyperscript/package.json b/packages/inferno-hyperscript/package.json
index 38f4f9be5..3ae4fcab4 100644
--- a/packages/inferno-hyperscript/package.json
+++ b/packages/inferno-hyperscript/package.json
@@ -10,7 +10,7 @@
   },
   "homepage": "https://github.com/infernojs/inferno#readme",
   "files": [
-    "index.js",
+    "index.cjs",
     "dist/",
     "README.md",
     "package.json"
diff --git a/packages/inferno-mobx/package.json b/packages/inferno-mobx/package.json
index 57f78d606..418ad6f98 100644
--- a/packages/inferno-mobx/package.json
+++ b/packages/inferno-mobx/package.json
@@ -13,7 +13,7 @@
   },
   "homepage": "https://github.com/infernojs/inferno#readme",
   "files": [
-    "index.js",
+    "index.cjs",
     "dist/",
     "README.md",
     "package.json"
diff --git a/packages/inferno-redux/package.json b/packages/inferno-redux/package.json
index eac29ba96..a782f0672 100644
--- a/packages/inferno-redux/package.json
+++ b/packages/inferno-redux/package.json
@@ -13,7 +13,7 @@
   },
   "homepage": "https://github.com/infernojs/inferno#readme",
   "files": [
-    "index.js",
+    "index.cjs",
     "dist/",
     "README.md",
     "package.json"
diff --git a/packages/inferno-router/package.json b/packages/inferno-router/package.json
index 8c9551d1b..8f95e4ca0 100644
--- a/packages/inferno-router/package.json
+++ b/packages/inferno-router/package.json
@@ -13,7 +13,7 @@
   },
   "homepage": "https://github.com/infernojs/inferno#readme",
   "files": [
-    "index.js",
+    "index.cjs",
     "dist/",
     "README.md",
     "package.json"
diff --git a/packages/inferno-server/package.json b/packages/inferno-server/package.json
index e0175aef5..73888ace5 100644
--- a/packages/inferno-server/package.json
+++ b/packages/inferno-server/package.json
@@ -27,7 +27,7 @@
     "rollup"
   ],
   "files": [
-    "index.js",
+    "index.cjs",
     "index.mjs",
     "dist/",
     "README.md",
diff --git a/packages/inferno-shared/package.json b/packages/inferno-shared/package.json
index 45a627f55..447bb6bc8 100644
--- a/packages/inferno-shared/package.json
+++ b/packages/inferno-shared/package.json
@@ -13,7 +13,7 @@
   },
   "homepage": "https://github.com/infernojs/inferno#readme",
   "files": [
-    "index.js",
+    "index.cjs",
     "dist/",
     "package.json"
   ],
diff --git a/packages/inferno-test-utils/package.json b/packages/inferno-test-utils/package.json
index 898c4e4e5..e8d2d767f 100644
--- a/packages/inferno-test-utils/package.json
+++ b/packages/inferno-test-utils/package.json
@@ -39,7 +39,7 @@
     }
   },
   "files": [
-    "index.js",
+    "index.cjs",
     "dist/",
     "README.md",
     "package.json"
diff --git a/packages/inferno-vnode-flags/package.json b/packages/inferno-vnode-flags/package.json
index 1fcebe8cb..37b62d470 100644
--- a/packages/inferno-vnode-flags/package.json
+++ b/packages/inferno-vnode-flags/package.json
@@ -39,7 +39,7 @@
     "moduleName": "Inferno"
   },
   "files": [
-    "index.js",
+    "index.cjs",
     "dist/",
     "README.md",
     "package.json"
diff --git a/packages/inferno/package.json b/packages/inferno/package.json
index a3e00d1b3..526be5cde 100644
--- a/packages/inferno/package.json
+++ b/packages/inferno/package.json
@@ -46,7 +46,7 @@
     "moduleName": "Inferno"
   },
   "files": [
-    "index.js",
+    "index.cjs",
     "index.mjs",
     "dist/",
     "README.md",