diff --git a/types/node/test.d.ts b/types/node/test.d.ts
index 614f94d5099aea..3d1cb9ce914252 100644
--- a/types/node/test.d.ts
+++ b/types/node/test.d.ts
@@ -171,21 +171,21 @@ declare module 'node:test' {
      * The `it()` function is imported from the `node:test` module.
      * @since v18.6.0, v16.17.0
      */
-    function it(name?: string, options?: TestOptions, fn?: ItFn): void;
-    function it(name?: string, fn?: ItFn): void;
-    function it(options?: TestOptions, fn?: ItFn): void;
-    function it(fn?: ItFn): void;
+    function it(name?: string, options?: TestOptions, fn?: TestFn): void;
+    function it(name?: string, fn?: TestFn): void;
+    function it(options?: TestOptions, fn?: TestFn): void;
+    function it(fn?: TestFn): void;
     namespace it {
         // Shorthand for skipping a test, same as `it([name], { skip: true }[, fn])`.
-        function skip(name?: string, options?: TestOptions, fn?: ItFn): void;
-        function skip(name?: string, fn?: ItFn): void;
-        function skip(options?: TestOptions, fn?: ItFn): void;
-        function skip(fn?: ItFn): void;
+        function skip(name?: string, options?: TestOptions, fn?: TestFn): void;
+        function skip(name?: string, fn?: TestFn): void;
+        function skip(options?: TestOptions, fn?: TestFn): void;
+        function skip(fn?: TestFn): void;
         // Shorthand for marking a test as `TODO`, same as `it([name], { todo: true }[, fn])`.
-        function todo(name?: string, options?: TestOptions, fn?: ItFn): void;
-        function todo(name?: string, fn?: ItFn): void;
-        function todo(options?: TestOptions, fn?: ItFn): void;
-        function todo(fn?: ItFn): void;
+        function todo(name?: string, options?: TestOptions, fn?: TestFn): void;
+        function todo(name?: string, fn?: TestFn): void;
+        function todo(options?: TestOptions, fn?: TestFn): void;
+        function todo(fn?: TestFn): void;
     }
     /**
      * The type of a function under test. The first argument to this function is a
@@ -198,11 +198,6 @@ declare module 'node:test' {
      * If the test uses callbacks, the callback function is passed as an argument
      */
     type SuiteFn = (done: (result?: any) => void) => void;
-    /**
-     * The type of a function under test.
-     * If the test uses callbacks, the callback function is passed as an argument
-     */
-    type ItFn = (done: (result?: any) => void) => any;
     interface RunOptions {
         /**
          * If a number is provided, then that many files would run in parallel.
diff --git a/types/node/test/test.ts b/types/node/test/test.ts
index f0249511edeae4..16935135284696 100644
--- a/types/node/test/test.ts
+++ b/types/node/test/test.ts
@@ -167,7 +167,9 @@ describe(cb => {
 });
 
 // Test callback mode
-it(cb => {
+it((t, cb) => {
+    // $ExpectType TestContext
+    t;
     // $ExpectType (result?: any) => void
     cb;
     // $ExpectType void
diff --git a/types/node/v18/test.d.ts b/types/node/v18/test.d.ts
index b8c8e9c66ddd94..0196cbc10f72fc 100644
--- a/types/node/v18/test.d.ts
+++ b/types/node/v18/test.d.ts
@@ -83,22 +83,22 @@ declare module 'node:test' {
      * @param fn The function under test. If the test uses callbacks, the callback function is
      *    passed as the second argument. Default: A no-op function.
      */
-    function it(name?: string, options?: TestOptions, fn?: ItFn): void;
-    function it(name?: string, fn?: ItFn): void;
-    function it(options?: TestOptions, fn?: ItFn): void;
-    function it(fn?: ItFn): void;
+    function it(name?: string, options?: TestOptions, fn?: TestFn): void;
+    function it(name?: string, fn?: TestFn): void;
+    function it(options?: TestOptions, fn?: TestFn): void;
+    function it(fn?: TestFn): void;
     namespace it {
         // Shorthand for skipping a test, same as `it([name], { skip: true }[, fn])`.
-        function skip(name?: string, options?: TestOptions, fn?: ItFn): void;
-        function skip(name?: string, fn?: ItFn): void;
-        function skip(options?: TestOptions, fn?: ItFn): void;
-        function skip(fn?: ItFn): void;
+        function skip(name?: string, options?: TestOptions, fn?: TestFn): void;
+        function skip(name?: string, fn?: TestFn): void;
+        function skip(options?: TestOptions, fn?: TestFn): void;
+        function skip(fn?: TestFn): void;
 
         // Shorthand for marking a test as `TODO`, same as `it([name], { todo: true }[, fn])`.
-        function todo(name?: string, options?: TestOptions, fn?: ItFn): void;
-        function todo(name?: string, fn?: ItFn): void;
-        function todo(options?: TestOptions, fn?: ItFn): void;
-        function todo(fn?: ItFn): void;
+        function todo(name?: string, options?: TestOptions, fn?: TestFn): void;
+        function todo(name?: string, fn?: TestFn): void;
+        function todo(options?: TestOptions, fn?: TestFn): void;
+        function todo(fn?: TestFn): void;
     }
 
     /**
@@ -114,12 +114,6 @@ declare module 'node:test' {
      */
     type SuiteFn = (done: (result?: any) => void) => void;
 
-    /**
-     * The type of a function under test.
-     * If the test uses callbacks, the callback function is passed as an argument
-     */
-    type ItFn = (done: (result?: any) => void) => any;
-
     interface RunOptions {
         /**
          * If a number is provided, then that many files would run in parallel.
diff --git a/types/node/v18/test/test.ts b/types/node/v18/test/test.ts
index 04431772b7c186..1c9cdf45004016 100644
--- a/types/node/v18/test/test.ts
+++ b/types/node/v18/test/test.ts
@@ -164,7 +164,9 @@ describe(cb => {
 });
 
 // Test callback mode
-it(cb => {
+it((t, cb) => {
+    // $ExpectType TestContext
+    t;
     // $ExpectType (result?: any) => void
     cb;
     // $ExpectType void
diff --git a/types/node/v18/ts4.8/test.d.ts b/types/node/v18/ts4.8/test.d.ts
index b8c8e9c66ddd94..0196cbc10f72fc 100644
--- a/types/node/v18/ts4.8/test.d.ts
+++ b/types/node/v18/ts4.8/test.d.ts
@@ -83,22 +83,22 @@ declare module 'node:test' {
      * @param fn The function under test. If the test uses callbacks, the callback function is
      *    passed as the second argument. Default: A no-op function.
      */
-    function it(name?: string, options?: TestOptions, fn?: ItFn): void;
-    function it(name?: string, fn?: ItFn): void;
-    function it(options?: TestOptions, fn?: ItFn): void;
-    function it(fn?: ItFn): void;
+    function it(name?: string, options?: TestOptions, fn?: TestFn): void;
+    function it(name?: string, fn?: TestFn): void;
+    function it(options?: TestOptions, fn?: TestFn): void;
+    function it(fn?: TestFn): void;
     namespace it {
         // Shorthand for skipping a test, same as `it([name], { skip: true }[, fn])`.
-        function skip(name?: string, options?: TestOptions, fn?: ItFn): void;
-        function skip(name?: string, fn?: ItFn): void;
-        function skip(options?: TestOptions, fn?: ItFn): void;
-        function skip(fn?: ItFn): void;
+        function skip(name?: string, options?: TestOptions, fn?: TestFn): void;
+        function skip(name?: string, fn?: TestFn): void;
+        function skip(options?: TestOptions, fn?: TestFn): void;
+        function skip(fn?: TestFn): void;
 
         // Shorthand for marking a test as `TODO`, same as `it([name], { todo: true }[, fn])`.
-        function todo(name?: string, options?: TestOptions, fn?: ItFn): void;
-        function todo(name?: string, fn?: ItFn): void;
-        function todo(options?: TestOptions, fn?: ItFn): void;
-        function todo(fn?: ItFn): void;
+        function todo(name?: string, options?: TestOptions, fn?: TestFn): void;
+        function todo(name?: string, fn?: TestFn): void;
+        function todo(options?: TestOptions, fn?: TestFn): void;
+        function todo(fn?: TestFn): void;
     }
 
     /**
@@ -114,12 +114,6 @@ declare module 'node:test' {
      */
     type SuiteFn = (done: (result?: any) => void) => void;
 
-    /**
-     * The type of a function under test.
-     * If the test uses callbacks, the callback function is passed as an argument
-     */
-    type ItFn = (done: (result?: any) => void) => any;
-
     interface RunOptions {
         /**
          * If a number is provided, then that many files would run in parallel.
diff --git a/types/node/v18/ts4.8/test/test.ts b/types/node/v18/ts4.8/test/test.ts
index 04431772b7c186..1c9cdf45004016 100644
--- a/types/node/v18/ts4.8/test/test.ts
+++ b/types/node/v18/ts4.8/test/test.ts
@@ -164,7 +164,9 @@ describe(cb => {
 });
 
 // Test callback mode
-it(cb => {
+it((t, cb) => {
+    // $ExpectType TestContext
+    t;
     // $ExpectType (result?: any) => void
     cb;
     // $ExpectType void