diff --git a/core/package.json b/core/package.json
index 2c8982424..e706c484e 100644
--- a/core/package.json
+++ b/core/package.json
@@ -17,6 +17,7 @@
     "clean": "rimraf dist"
   },
   "peerDependencies": {
+    "client-only": "*",
     "swr": "*",
     "react": "*",
     "use-sync-external-store": "*"
diff --git a/core/src/env.d.ts b/core/src/env.d.ts
new file mode 100644
index 000000000..6aec8a9b9
--- /dev/null
+++ b/core/src/env.d.ts
@@ -0,0 +1 @@
+declare module 'client-only'
diff --git a/core/src/index.ts b/core/src/index.ts
index 40a2c772c..d7fc5c387 100644
--- a/core/src/index.ts
+++ b/core/src/index.ts
@@ -1,4 +1,4 @@
-'use client'
+import 'client-only'
 
 // useSWR
 import useSWR from './use-swr'
diff --git a/immutable/src/index.ts b/immutable/src/index.ts
index 64da6ac71..d39e8d6ba 100644
--- a/immutable/src/index.ts
+++ b/immutable/src/index.ts
@@ -1,5 +1,3 @@
-'use client'
-
 import type { Middleware } from 'swr'
 import useSWR from 'swr'
 import { withMiddleware } from 'swr/_internal'
diff --git a/infinite/src/index.ts b/infinite/src/index.ts
index 033f6399f..dfc76df81 100644
--- a/infinite/src/index.ts
+++ b/infinite/src/index.ts
@@ -1,5 +1,3 @@
-'use client'
-
 // We have to several type castings here because `useSWRInfinite` is a special
 // hook where `key` and return type are not like the normal `useSWR` types.
 
diff --git a/mutation/src/index.ts b/mutation/src/index.ts
index 5e6040528..16637386f 100644
--- a/mutation/src/index.ts
+++ b/mutation/src/index.ts
@@ -1,5 +1,3 @@
-'use client'
-
 import { useCallback, useRef } from 'react'
 import useSWR, { useSWRConfig } from 'swr'
 import type { Middleware, Key } from 'swr/_internal'
diff --git a/package.json b/package.json
index fcfbd8af4..f8527d5d0 100644
--- a/package.json
+++ b/package.json
@@ -147,6 +147,7 @@
     "trailingComma": "none"
   },
   "dependencies": {
+    "client-only": "^0.0.1",
     "use-sync-external-store": "^1.2.0"
   }
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 942bc131f..f6963d8ed 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -4,6 +4,9 @@ importers:
 
   .:
     dependencies:
+      client-only:
+        specifier: ^0.0.1
+        version: 0.0.1
       use-sync-external-store:
         specifier: ^1.2.0
         version: 1.2.0(react@18.2.0)
@@ -2131,7 +2134,6 @@ packages:
 
   /client-only@0.0.1:
     resolution: {integrity: sha512-IV3Ou0jSMzZrd3pZ48nLkT9DA7Ag1pnPzaiQhpW7c3RbcqqzvzzVu+L8gfqMp/8IM2MQtSiqaCxrrcfu8I8rMA==}
-    dev: true
 
   /cliui@7.0.4:
     resolution: {integrity: sha512-OcRE68cOsVMXp1Yvonl/fzkQOyjLSu/8bhPDfQt0e0/Eb283TKP20Fs2MqoPsr9SwA595rRCA+QMzYc9nBP+JQ==}
diff --git a/subscription/src/index.ts b/subscription/src/index.ts
index 85bca31f7..b01552c9a 100644
--- a/subscription/src/index.ts
+++ b/subscription/src/index.ts
@@ -1,5 +1,3 @@
-'use client'
-
 import type { Key, SWRHook, Middleware, SWRConfiguration, SWRConfig } from 'swr'
 import type {
   SWRSubscriptionOptions,