diff --git a/packages/core/src/Groups/GroupStore.ts b/packages/core/src/Groups/GroupStore.ts
index b572c5ef..25688f69 100644
--- a/packages/core/src/Groups/GroupStore.ts
+++ b/packages/core/src/Groups/GroupStore.ts
@@ -196,7 +196,7 @@ export class GroupStore {
       selector: {
         groupId: { $in: groupIds },
       },
-    }) as unknown as Array<GroupEntry>;
+    }) as Promise<Array<GroupEntry>>;
   }
 
   async _findGroupsByPublicKey(Ids: Array<b64string>): Promise<Array<GroupEntry>> {
@@ -204,6 +204,6 @@ export class GroupStore {
       selector: {
         _id: { $in: Ids },
       },
-    }) as unknown as Array<GroupEntry>;
+    }) as Promise<Array<GroupEntry>>;
   }
 }
diff --git a/packages/core/src/Network/Client.ts b/packages/core/src/Network/Client.ts
index 0a1a4625..bb47ef40 100644
--- a/packages/core/src/Network/Client.ts
+++ b/packages/core/src/Network/Client.ts
@@ -88,9 +88,9 @@ export class Client {
   _cancelable = <R>(fun: (...args: Array<any>) => Promise<R>) => (...args: Array<any>) => {
     // cancelationHandle.promise always rejects. Its returned type doesn't matter
     if (this._cancelationHandle.settled) {
-      return this._cancelationHandle.promise as unknown as Promise<R>;
+      return this._cancelationHandle.promise as never;
     }
-    return Promise.race([this._cancelationHandle.promise as unknown as Promise<R>, fun(...args)]);
+    return Promise.race([this._cancelationHandle.promise as never, fun(...args)]);
   };
 
   // Simple fetch wrapper with limited concurrency