diff --git a/.changeset/late-carrots-notice.md b/.changeset/late-carrots-notice.md
new file mode 100644
index 00000000000..a051c9607da
--- /dev/null
+++ b/.changeset/late-carrots-notice.md
@@ -0,0 +1,5 @@
+---
+'@clerk/clerk-react': patch
+---
+
+Warn about `setSession` deprecation.
diff --git a/packages/react/src/isomorphicClerk.ts b/packages/react/src/isomorphicClerk.ts
index 2a6b3a930dc..398e675f9de 100644
--- a/packages/react/src/isomorphicClerk.ts
+++ b/packages/react/src/isomorphicClerk.ts
@@ -1,4 +1,4 @@
-import { handleValueOrFn, inClientSide } from '@clerk/shared';
+import { deprecated, handleValueOrFn, inClientSide } from '@clerk/shared';
 import type {
   ActiveSessionResource,
   AuthenticateWithMetamaskParams,
@@ -355,6 +355,7 @@ export default class IsomorphicClerk {
   };
 
   setSession = (session: ActiveSessionResource | string | null, beforeEmit?: BeforeEmitCallback): Promise<void> => {
+    deprecated('setSession', 'Use `Clerk.setActive` instead');
     return this.setActive({ session, beforeEmit });
   };