diff --git a/packages/ariakit/package.json b/packages/ariakit/package.json
index c9a88e34f..fec77f987 100644
--- a/packages/ariakit/package.json
+++ b/packages/ariakit/package.json
@@ -2,6 +2,9 @@
   "name": "@blocknote/ariakit",
   "homepage": "https://github.com/TypeCellOS/BlockNote",
   "private": false,
+  "sideEffects": [
+    "*.css"
+  ],
   "license": "MPL-2.0",
   "version": "0.16.0",
   "files": [
diff --git a/packages/core/package.json b/packages/core/package.json
index b0042e4a3..76cfc9b8f 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -2,6 +2,9 @@
   "name": "@blocknote/core",
   "homepage": "https://github.com/TypeCellOS/BlockNote",
   "private": false,
+  "sideEffects": [
+    "*.css"
+  ],
   "license": "MPL-2.0",
   "version": "0.16.0",
   "files": [
diff --git a/packages/react/package.json b/packages/react/package.json
index 92484e59a..2630e3ff0 100644
--- a/packages/react/package.json
+++ b/packages/react/package.json
@@ -2,7 +2,9 @@
   "name": "@blocknote/react",
   "homepage": "https://github.com/TypeCellOS/BlockNote",
   "private": false,
-  "sideEffects": false,
+  "sideEffects": [
+    "*.css"
+  ],
   "license": "MPL-2.0",
   "version": "0.16.0",
   "files": [
diff --git a/packages/server-util/package.json b/packages/server-util/package.json
index b55f8218a..ce3fc7b82 100644
--- a/packages/server-util/package.json
+++ b/packages/server-util/package.json
@@ -2,6 +2,9 @@
   "name": "@blocknote/server-util",
   "homepage": "https://github.com/TypeCellOS/BlockNote",
   "private": false,
+  "sideEffects": [
+    "*.css"
+  ],
   "license": "MPL-2.0",
   "version": "0.16.0",
   "files": [
diff --git a/packages/shadcn/package.json b/packages/shadcn/package.json
index e1cd95820..4f900c1a7 100644
--- a/packages/shadcn/package.json
+++ b/packages/shadcn/package.json
@@ -2,7 +2,9 @@
   "name": "@blocknote/shadcn",
   "homepage": "https://github.com/TypeCellOS/BlockNote",
   "private": false,
-  "sideEffects": false,
+  "sideEffects": [
+    "*.css"
+  ],
   "license": "MPL-2.0",
   "version": "0.16.0",
   "files": [