diff --git a/Lib/test/test_pickle.py b/Lib/test/test_pickle.py
index 39f0dd63686..bd3dfcb3d18 100644
--- a/Lib/test/test_pickle.py
+++ b/Lib/test/test_pickle.py
@@ -130,8 +130,6 @@ def test_newobj_generic(self): # TODO: RUSTPYTHON, remove when this passes
     def test_newobj_proxies(self): # TODO: RUSTPYTHON, remove when this passes
         super().test_newobj_proxies() # TODO: RUSTPYTHON, remove when this passes
 
-    # TODO: RUSTPYTHON, TypeError: cannot pickle 'NotImplementedType' object
-    @unittest.expectedFailure
     def test_notimplemented(self): # TODO: RUSTPYTHON, remove when this passes
         super().test_notimplemented() # TODO: RUSTPYTHON, remove when this passes
 
@@ -165,8 +163,6 @@ def test_py_methods(self): # TODO: RUSTPYTHON, remove when this passes
     def test_recursive_nested_names(self): # TODO: RUSTPYTHON, remove when this passes
         super().test_recursive_nested_names() # TODO: RUSTPYTHON, remove when this passes
 
-    # TODO: RUSTPYTHON, TypeError: cannot pickle 'NotImplementedType' object
-    @unittest.expectedFailure
     def test_singleton_types(self): # TODO: RUSTPYTHON, remove when this passes
         super().test_singleton_types() # TODO: RUSTPYTHON, remove when this passes
 
@@ -251,8 +247,6 @@ def test_newobj_generic(self): # TODO: RUSTPYTHON, remove when this passes
     def test_newobj_proxies(self): # TODO: RUSTPYTHON, remove when this passes
         super().test_newobj_proxies() # TODO: RUSTPYTHON, remove when this passes
 
-    # TODO: RUSTPYTHON, TypeError: cannot pickle 'NotImplementedType' object
-    @unittest.expectedFailure
     def test_notimplemented(self): # TODO: RUSTPYTHON, remove when this passes
         super().test_notimplemented() # TODO: RUSTPYTHON, remove when this passes
 
@@ -286,8 +280,6 @@ def test_py_methods(self): # TODO: RUSTPYTHON, remove when this passes
     def test_recursive_nested_names(self): # TODO: RUSTPYTHON, remove when this passes
         super().test_recursive_nested_names() # TODO: RUSTPYTHON, remove when this passes
 
-    # TODO: RUSTPYTHON, TypeError: cannot pickle 'NotImplementedType' object
-    @unittest.expectedFailure
     def test_singleton_types(self): # TODO: RUSTPYTHON, remove when this passes
         super().test_singleton_types() # TODO: RUSTPYTHON, remove when this passes
 
diff --git a/Lib/test/test_pickletools.py b/Lib/test/test_pickletools.py
index ae4b7eb1785..fad54880ff6 100644
--- a/Lib/test/test_pickletools.py
+++ b/Lib/test/test_pickletools.py
@@ -52,8 +52,6 @@ def test_newobj_generic(self): # TODO: RUSTPYTHON, remove when this passes
     def test_newobj_proxies(self): # TODO: RUSTPYTHON, remove when this passes
         super().test_newobj_proxies()
 
-    # TODO: RUSTPYTHON, TypeError: cannot pickle 'NotImplementedType' object
-    @unittest.expectedFailure
     def test_notimplemented(self): # TODO: RUSTPYTHON, remove when this passes
         super().test_notimplemented()
 
@@ -87,8 +85,6 @@ def test_py_methods(self): # TODO: RUSTPYTHON, remove when this passes
     def test_recursive_nested_names(self): # TODO: RUSTPYTHON, remove when this passes
         super().test_recursive_nested_names()
 
-    # TODO: RUSTPYTHON, TypeError: cannot pickle 'NotImplementedType' object
-    @unittest.expectedFailure
     def test_singleton_types(self): # TODO: RUSTPYTHON, remove when this passes
         super().test_singleton_types()
 
diff --git a/vm/src/builtins/singletons.rs b/vm/src/builtins/singletons.rs
index bc5718fbc08..0f3b9870595 100644
--- a/vm/src/builtins/singletons.rs
+++ b/vm/src/builtins/singletons.rs
@@ -84,6 +84,11 @@ impl PyNotImplemented {
     fn repr(&self) -> String {
         "NotImplemented".to_owned()
     }
+
+    #[pymethod(magic)]
+    fn reduce(&self) -> String {
+        "NotImplemented".to_owned()
+    }
 }
 
 pub fn init(context: &Context) {