diff --git a/pyproject.toml b/pyproject.toml
index 02cffbe..9d24504 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,11 +9,13 @@ description = "Implement a ChatGPT-like LLM in PyTorch from scratch, step by ste
 readme = "README.md"
 requires-python = ">=3.10,<3.13"
 dependencies = [
-    "torch>=2.3.0",
+    "torch==2.2.2; sys_platform == 'darwin' and platform_machine == 'x86_64'",    # Intel macOS
+    "torch>=2.3.0; sys_platform != 'darwin' or platform_machine != 'x86_64'",
     "jupyterlab>=4.0",
     "tiktoken>=0.5.1",
     "matplotlib>=3.7.1",
-    "tensorflow>=2.18.0",
+    "tensorflow==2.16.2; sys_platform == 'darwin' and platform_machine == 'x86_64'",  # Intel macOS
+    "tensorflow>=2.18.0; sys_platform != 'darwin' or platform_machine != 'x86_64'",
     "tqdm>=4.66.1",
     "numpy>=1.26,<2.1",
     "pandas>=2.2.1",
@@ -38,15 +40,12 @@ line-length = 140
 
 [tool.ruff.lint]
 exclude = [".venv"]
-# Ignored rules (W504 removed)
 ignore = [
     "C406", "E226", "E402", "E702", "E703",
     "E722", "E731", "E741"
 ]
 
-
 # `llms_from_scratch` PyPI package
-
 [tool.setuptools]
 package-dir = {"" = "pkg"}
 
diff --git a/requirements.txt b/requirements.txt
index 3940856..48c4971 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,8 +1,10 @@
-torch >= 2.3.0             # all
+torch == 2.2.2; sys_platform == 'darwin' and platform_machine == 'x86_64'  # Intel macOS
+torch >= 2.3.0; sys_platform != 'darwin' or platform_machine != 'x86_64'   # all chapters
 jupyterlab >= 4.0          # all
 tiktoken >= 0.5.1          # ch02; ch04; ch05
 matplotlib >= 3.7.1        # ch04; ch06; ch07
-tensorflow >= 2.18.0       # ch05; ch06; ch07
+tensorflow == 2.16.2; sys_platform == 'darwin' and platform_machine == 'x86_64'  # Intel macOS
+tensorflow >= 2.18.0; sys_platform != 'darwin' or platform_machine != 'x86_64'   # ch05; ch06; ch07
 tqdm >= 4.66.1             # ch05; ch07
 numpy >= 1.26, < 2.1       # dependency of several other libraries like torch and pandas
 pandas >= 2.2.1            # ch06