diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3de67cc5..f70460ec 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 ## [Unreleased]
 ### Added
 ### Changed
+- Removed deprecated `numpy.float_` and update NumPy/Pandas imports ([#762](https://github.com/opensearch-project/opensearch-py/pull/762))
 ### Deprecated
 ### Removed
 ### Fixed
diff --git a/dev-requirements.txt b/dev-requirements.txt
index 580ed7ee..979bc04a 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -11,9 +11,8 @@ deepmerge
 Events
 setuptools
 
-# No wheels for Python 3.10 yet!
-numpy; python_version<"3.10"
-pandas; python_version<"3.10"
+numpy; python_version<="3.12"
+pandas; python_version<="3.12"
 
 pyyaml>=5.4
 
diff --git a/opensearchpy/serializer.py b/opensearchpy/serializer.py
index e5c0a6c9..d16c287e 100644
--- a/opensearchpy/serializer.py
+++ b/opensearchpy/serializer.py
@@ -111,7 +111,6 @@ def default(self, data: Any) -> Any:
             elif isinstance(
                 data,
                 (
-                    np.float_,
                     np.float16,
                     np.float32,
                     np.float64,
diff --git a/test_opensearchpy/test_serializer.py b/test_opensearchpy/test_serializer.py
index 524887d0..c0f223ad 100644
--- a/test_opensearchpy/test_serializer.py
+++ b/test_opensearchpy/test_serializer.py
@@ -106,7 +106,6 @@ def test_serializes_numpy_floats(self) -> None:
 
         ser = JSONSerializer()
         for np_type in (
-            np.float_,
             np.float32,
             np.float64,
         ):