diff --git a/src/hippopt/base/optimization_object.py b/src/hippopt/base/optimization_object.py
index 11e4b688..ea410ecd 100644
--- a/src/hippopt/base/optimization_object.py
+++ b/src/hippopt/base/optimization_object.py
@@ -1,4 +1,10 @@
-from hippopt.common import Any, ClassVar, Type, TypeVar, abc, copy, cs, dataclasses, np
+import abc
+import copy
+import dataclasses
+from typing import Any, ClassVar, Type, TypeVar
+
+import casadi as cs
+import numpy as np
 
 TOptimizationObject = TypeVar("TOptimizationObject", bound="OptimizationObject")
 StorageType = cs.MX | np.ndarray
diff --git a/src/hippopt/base/parameter.py b/src/hippopt/base/parameter.py
index 79ae6b8f..6d1db6a0 100644
--- a/src/hippopt/base/parameter.py
+++ b/src/hippopt/base/parameter.py
@@ -1,5 +1,7 @@
+import dataclasses
+from typing import Any, ClassVar, TypeVar
+
 from hippopt.base.optimization_object import OptimizationObject
-from hippopt.common import Any, ClassVar, TypeVar, dataclasses
 
 TParameter = TypeVar("TParameter", bound="Parameter")
 
diff --git a/src/hippopt/base/variable.py b/src/hippopt/base/variable.py
index 082f9aa1..64912985 100644
--- a/src/hippopt/base/variable.py
+++ b/src/hippopt/base/variable.py
@@ -1,5 +1,7 @@
+import dataclasses
+from typing import Any, ClassVar, TypeVar
+
 from hippopt.base.optimization_object import OptimizationObject
-from hippopt.common import Any, ClassVar, TypeVar, dataclasses
 
 TVariable = TypeVar("TVariable", bound="Variable")
 
diff --git a/src/hippopt/common.py b/src/hippopt/common.py
deleted file mode 100644
index 761dffe0..00000000
--- a/src/hippopt/common.py
+++ /dev/null
@@ -1,19 +0,0 @@
-import abc
-import copy
-import dataclasses
-from typing import Any, ClassVar, Type, TypeVar, Union
-
-import casadi as cs
-import numpy as np
-
-__all__ = [
-    "abc",
-    "copy",
-    "dataclasses",
-    "Any",
-    "ClassVar",
-    "Type",
-    "TypeVar",
-    "cs",
-    "np",
-]