diff --git a/Pipfile b/Pipfile
index d0d3c1e..cb7a3bb 100644
--- a/Pipfile
+++ b/Pipfile
@@ -11,7 +11,6 @@ ipython = "*"
 matplotlib = "*"
 jupyterlab = "*"
 pytest = "*"
-nptyping = "*"
 pytest-xdist = "*"
 
 [requires]
diff --git a/Pipfile.lock b/Pipfile.lock
index 122906c..e55c920 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "092262682f1ce00183ccc178ed7cd20746fdc03f9a5c9993da685807df273c8c"
+            "sha256": "55351526ca660f05e095918484fddad02cf83e528a15e2c8905577e6d6534385"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -1008,15 +1008,6 @@
             "markers": "python_version >= '3.7'",
             "version": "==0.2.4"
         },
-        "nptyping": {
-            "hashes": [
-                "sha256:764e51836faae33a7ae2e928af574cfb701355647accadcc89f2ad793630b7c8",
-                "sha256:e3d35b53af967e6fb407c3016ff9abae954d3a0568f7cc13a461084224e8e20a"
-            ],
-            "index": "pypi",
-            "markers": "python_version >= '3.7'",
-            "version": "==2.5.0"
-        },
         "numpy": {
             "hashes": [
                 "sha256:04494f6ec467ccb5369d1808570ae55f6ed9b5809d7f035059000a37b8d7e86f",
diff --git a/src/lupy/types.py b/src/lupy/types.py
index 6507d44..b1944b1 100644
--- a/src/lupy/types.py
+++ b/src/lupy/types.py
@@ -1,16 +1,12 @@
 from typing import Any
-import warnings
 
 import numpy as np
 import numpy.typing as npt
 
-with warnings.catch_warnings(category=DeprecationWarning):
-    warnings.simplefilter('ignore')
-    from nptyping import NDArray, Structure
 
 
 __all__ = (
-    'Floating', 'Complex', 'MeterDtype', 'MeterStruct', 'MeterArray',
+    'Floating', 'Complex', 'MeterDtype', 'MeterArray',
     'AnyArray', 'BoolArray', 'IndexArray', 'FloatArray', 'ComplexArray',
     'Float1dArray', 'Float2dArray', 'Float3dArray',
 )
@@ -25,7 +21,6 @@
     ('s', np.float64),
 ])
 
-MeterStruct = Structure['t: Floating, m: Floating, s: Floating']
 
 
 AnyArray = npt.NDArray[Any]
@@ -33,7 +28,7 @@
 IndexArray = npt.NDArray[np.intp]
 FloatArray = npt.NDArray[Floating]
 ComplexArray = npt.NDArray[Complex]
-MeterArray = NDArray[Any, MeterStruct]
-Float1dArray = npt.NDArray[Floating]#NDArray[Shape['*'], _Floating]
-Float2dArray = npt.NDArray[Floating]#NDArray[Shape['*, *'], _Floating]
-Float3dArray = npt.NDArray[Floating]#NDArray[Shape['*, *, *'], _Floating]
+MeterArray = npt.NDArray[np.void]
+Float1dArray = npt.NDArray[Floating]
+Float2dArray = npt.NDArray[Floating]
+Float3dArray = npt.NDArray[Floating]