diff --git a/pybop/__init__.py b/pybop/__init__.py
index bd6d8f9cd..5a7c3ac23 100644
--- a/pybop/__init__.py
+++ b/pybop/__init__.py
@@ -5,7 +5,6 @@
 # This file is adapted from Pints
 # (see https://github.com/pints-team/pints)
 #
-from __future__ import annotations
 import sys
 from os import path
 
diff --git a/pybop/models/base_model.py b/pybop/models/base_model.py
index 239a90224..fd2d3e4e3 100644
--- a/pybop/models/base_model.py
+++ b/pybop/models/base_model.py
@@ -1,5 +1,3 @@
-from __future__ import annotations
-
 import copy
 from dataclasses import dataclass
 from typing import Any, Dict, Optional
diff --git a/tests/unit/test_cost.py b/tests/unit/test_cost.py
index cfde8709e..6ffeb58ea 100644
--- a/tests/unit/test_cost.py
+++ b/tests/unit/test_cost.py
@@ -1,5 +1,3 @@
-from __future__ import annotations
-
 import numpy as np
 import pytest
 
diff --git a/tests/unit/test_likelihoods.py b/tests/unit/test_likelihoods.py
index 44d1e4e6d..a590808c0 100644
--- a/tests/unit/test_likelihoods.py
+++ b/tests/unit/test_likelihoods.py
@@ -1,5 +1,3 @@
-from __future__ import annotations
-
 import numpy as np
 import pytest