diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index 27223735..b17d2542 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -14,6 +14,13 @@ jobs:
       matrix:
         python-version: [3.7, 3.8, 3.9, "3.10", "3.11"]
         architecture: ["x64"]
+        include:
+          - python-version: 3.9
+            numpy-version: "2.0.dev"
+          - python-version: 3.10
+            numpy-version: "2.0.dev"
+          - python-version: 3.11
+            numpy-version: "2.0.dev"
     steps:
     - uses: actions/checkout@v2
     - name: Setup Python ${{ matrix.python-version }} on ${{ matrix.architecture }}
@@ -37,6 +44,9 @@ jobs:
     - name: Install dependencies
       if: matrix.python-version != 3.7
       run: pip install -r requirements-dev.txt
+    - name: Install Numpy Dev
+      if: ${{ matrix.numpy-version }}
+      run: pip install -I --extra-index-url https://pypi.anaconda.org/scientific-python-nightly-wheels/simple "numpy>=0.0.dev0" 
     - name: Lint with flake8
       if: matrix.python-version == 3.11
       run: |
diff --git a/deepdiff/helper.py b/deepdiff/helper.py
index cec24f38..29efe0bd 100644
--- a/deepdiff/helper.py
+++ b/deepdiff/helper.py
@@ -64,11 +64,11 @@ class pydantic_base_model_type:
     np_uintp = np.uintp
     np_float32 = np.float32
     np_float64 = np.float64
-    np_float_ = np.float_
+    np_float_ = np.double  # np.float_ is an alias for np.double and is being removed by NumPy 2.0
     np_floating = np.floating
     np_complex64 = np.complex64
     np_complex128 = np.complex128
-    np_complex_ = np.complex_
+    np_complex_ = np.cdouble # np.complex_ is an alias for np.cdouble and is being removed by NumPy 2.0
     np_complexfloating = np.complexfloating
 
 numpy_numbers = (
@@ -655,7 +655,7 @@ def diff_numpy_array(A, B):
     By Divakar
     https://stackoverflow.com/a/52417967/1497443
     """
-    return A[~np.in1d(A, B)]
+    return A[~np.isin(A, B)]
 
 
 PYTHON_TYPE_TO_NUMPY_TYPE = {