diff --git a/types/socketcluster-client/lib/clientsocket.d.ts b/types/socketcluster-client/lib/clientsocket.d.ts
index d843e8f9c7..c268364e57 100644
--- a/types/socketcluster-client/lib/clientsocket.d.ts
+++ b/types/socketcluster-client/lib/clientsocket.d.ts
@@ -144,7 +144,7 @@ declare class AGClientSocket extends AsyncStreamEmitter<any> implements AGChanne
     isSubscribed(channelName: string, includePending?: boolean): boolean;
 
     transmitPublish(channelName: string, data: any): Promise<void>;
-    invokePublish<T>(channelName: string, data: T): Promise<{ channel: string; data: T }>;
+    invokePublish(channelName: string, data: any): Promise<{ channel: string; data: any }>;
 
     /* AGChannel.Client end */
 
@@ -175,7 +175,7 @@ declare class AGClientSocket extends AsyncStreamEmitter<any> implements AGChanne
     send(data: any): void;
 
     transmit(event: string, data: any, options?: { ackTimeout?: number }): Promise<void>;
-    invoke<T>(event: string, data: T, options?: { ackTimeout?: number }): Promise<T>;
+    invoke(event: string, data: any, options?: { ackTimeout?: number }): Promise<any>;
 
     startBatch(): void;
     flushBatch(): void;
diff --git a/types/socketcluster-client/socketcluster-client-tests.ts b/types/socketcluster-client/socketcluster-client-tests.ts
index 5e9078c0f4..4cfe073107 100644
--- a/types/socketcluster-client/socketcluster-client-tests.ts
+++ b/types/socketcluster-client/socketcluster-client-tests.ts
@@ -10,7 +10,7 @@ const socket = create({
 socket.transmit('foo', 123);
 
 (async () => {
-    // $ExpectType number
+    // $ExpectType any
     await socket.invoke('myProc', 123);
 })();
 
@@ -51,7 +51,7 @@ socket.transmitPublish('myChannel', 'This is a message');
         // $ExpectType string
         response.channel;
 
-        // $ExpectType string
+        // $ExpectType any
         response.data;
     } catch (error) {}
 })();