diff --git a/conda/environments/all_cuda-118_arch-x86_64.yaml b/conda/environments/all_cuda-118_arch-x86_64.yaml
index e8a39e250e..73cfd8f1e0 100644
--- a/conda/environments/all_cuda-118_arch-x86_64.yaml
+++ b/conda/environments/all_cuda-118_arch-x86_64.yaml
@@ -57,7 +57,7 @@ dependencies:
 - pytest-cov
 - pytest-xdist
 - pytest==7.*
-- python>=3.9,<3.12
+- python>=3.10,<3.12
 - raft-dask==24.10.*,>=0.0.0a0
 - rapids-build-backend>=0.3.0,<0.4.0.dev0
 - rapids-dask-dependency==24.10.*,>=0.0.0a0
diff --git a/conda/environments/all_cuda-125_arch-x86_64.yaml b/conda/environments/all_cuda-125_arch-x86_64.yaml
index 293028cdb1..43bf7117b3 100644
--- a/conda/environments/all_cuda-125_arch-x86_64.yaml
+++ b/conda/environments/all_cuda-125_arch-x86_64.yaml
@@ -53,7 +53,7 @@ dependencies:
 - pytest-cov
 - pytest-xdist
 - pytest==7.*
-- python>=3.9,<3.12
+- python>=3.10,<3.12
 - raft-dask==24.10.*,>=0.0.0a0
 - rapids-build-backend>=0.3.0,<0.4.0.dev0
 - rapids-dask-dependency==24.10.*,>=0.0.0a0
diff --git a/dependencies.yaml b/dependencies.yaml
index e22aec7034..a9edc41364 100644
--- a/dependencies.yaml
+++ b/dependencies.yaml
@@ -450,10 +450,6 @@ dependencies:
     specific:
       - output_types: conda
         matrices:
-          - matrix:
-              py: "3.9"
-            packages:
-              - python=3.9
           - matrix:
               py: "3.10"
             packages:
@@ -464,7 +460,7 @@ dependencies:
               - python=3.11
           - matrix:
             packages:
-              - python>=3.9,<3.12
+              - python>=3.10,<3.12
   test_libcuml:
     common:
       - output_types: conda
diff --git a/python/cuml/pyproject.toml b/python/cuml/pyproject.toml
index 0b5c650703..96215c140a 100644
--- a/python/cuml/pyproject.toml
+++ b/python/cuml/pyproject.toml
@@ -78,7 +78,7 @@ authors = [
     { name = "NVIDIA Corporation" },
 ]
 license = { text = "Apache 2.0" }
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 dependencies = [
     "cudf==24.10.*,>=0.0.0a0",
     "cupy-cuda11x>=12.0.0",
@@ -102,7 +102,6 @@ dependencies = [
 classifiers = [
     "Intended Audience :: Developers",
     "Programming Language :: Python",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
 ]
@@ -134,7 +133,7 @@ Documentation = "https://docs.rapids.ai/api/cuml/stable/"
 
 [tool.black]
 line-length = 79
-target-version = ["py39"]
+target-version = ["py310"]
 include = '\.py?$'
 force-exclude = '''
 _stop_words\.py |