diff --git a/types/lodash/index.d.ts b/types/lodash/index.d.ts
index 33c4af1709..2a44ac7d4c 100644
--- a/types/lodash/index.d.ts
+++ b/types/lodash/index.d.ts
@@ -10183,7 +10183,7 @@ declare namespace _ {
          * @param value The value to check.
          * @returns Returns true if value is correctly classified, else false.
          */
-        isWeakSet<T extends object>(value?: any): value is WeakSet<T>;
+        isWeakSet(value?: any): value is WeakSet<object>;
     }
 
     interface LoDashImplicitWrapper<TValue> {
diff --git a/types/lodash/lodash-tests.ts b/types/lodash/lodash-tests.ts
index b993018c7f..b5afe8cc33 100644
--- a/types/lodash/lodash-tests.ts
+++ b/types/lodash/lodash-tests.ts
@@ -8574,7 +8574,7 @@ namespace TestIsWeakSet {
     {
         let value: number | WeakSet<object> = 0;
 
-        if (_.isWeakSet<object>(value)) {
+        if (_.isWeakSet(value)) {
             let result: WeakSet<object> = value;
         }
         else {