diff --git a/README.rst b/README.rst
index cfd5c687e4..a2327e025e 100644
--- a/README.rst
+++ b/README.rst
@@ -159,7 +159,7 @@ System Requirements
   * Compiler: GCC 9+ or Clang 10+ with C++17 support
   * Python: 3.12 recommended
 
-* **Source Build Requirements:** CMake 3.18+, Ninja, Git 2.17+, pybind11 2.6.0+
+* **Source Build Requirements:** CMake 3.18+, Git 2.17+, pybind11 2.6.0+
 
 * **Notes:** FP8 features require Compute Capability 8.9+ (Ada/Hopper/Blackwell)
 
diff --git a/pyproject.toml b/pyproject.toml
index ef112d2798..66963e2d60 100755
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,7 @@
 # See LICENSE for license information.
 
 [build-system]
-requires = ["setuptools>=61.0", "cmake>=3.21", "wheel", "pybind11[global]", "ninja", "pip", "torch>=2.1", "jax[cuda12]", "flax>=0.7.1"]
+requires = ["setuptools>=61.0", "cmake>=3.21", "wheel", "pybind11[global]", "pip", "torch>=2.1", "jax[cuda12]", "flax>=0.7.1"]
 
 # Use legacy backend to import local packages in setup.py
 build-backend = "setuptools.build_meta:__legacy__"