diff --git a/src/index.ts b/src/index.ts
index 8bd4194..0ca21a3 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -125,7 +125,7 @@ export async function init(config: IClientConfig): Promise<EppoClient> {
   // we estimate this will use no more than 10 MB of memory
   // and should be appropriate for most server-side use cases.
   clientInstance.useLRUInMemoryAssignmentCache(50_000);
-  clientInstance.useLRUInMemoryBanditAssignmentCache(50_000);
+  clientInstance.useTLRUInMemoryAssignmentCache(50_000);
 
   // Fetch configurations (which will also start regular polling per requestConfiguration)
   await clientInstance.fetchFlagConfigurations();