diff --git a/code/Ch8/pyproject.toml b/code/Ch8/pyproject.toml
index 8c942a4..196b4e2 100644
--- a/code/Ch8/pyproject.toml
+++ b/code/Ch8/pyproject.toml
@@ -83,7 +83,7 @@ dependencies = [
     "patsy==1.0.1",
     "pexpect==4.9.0",
     "pillow==11.3.0",
-    "pip==25.2",
+    "pip==26.0",
     "pipdeptree==2.28.0",
     "platformdirs==4.4.0",
     "plotly==6.3.1",
diff --git a/code/Ch8/requirements.txt b/code/Ch8/requirements.txt
index dcc3062..f0c77a1 100644
--- a/code/Ch8/requirements.txt
+++ b/code/Ch8/requirements.txt
@@ -4,8 +4,6 @@ anyio==4.11.0
     # via
     #   httpx
     #   jupyter-server
-appnope==0.1.4
-    # via ipykernel
 argon2-cffi==25.1.0
     # via jupyter-server
 argon2-cffi-bindings==25.1.0
@@ -256,7 +254,7 @@ pillow==11.3.0
     # via
     #   bokeh
     #   matplotlib
-pip==25.2
+pip==26.0
     # via pipdeptree
 pipdeptree==2.28.0
     # via -r requirements.in
diff --git a/code/Ch8/uv.lock b/code/Ch8/uv.lock
index 8125181..b9e6bae 100644
--- a/code/Ch8/uv.lock
+++ b/code/Ch8/uv.lock
@@ -443,7 +443,7 @@ requires-dist = [
     { name = "patsy", specifier = "==1.0.1" },
     { name = "pexpect", specifier = "==4.9.0" },
     { name = "pillow", specifier = "==11.3.0" },
-    { name = "pip", specifier = "==25.2" },
+    { name = "pip", specifier = "==26.0" },
     { name = "pipdeptree", specifier = "==2.28.0" },
     { name = "platformdirs", specifier = "==4.4.0" },
     { name = "plotly", specifier = "==6.3.1" },
@@ -1671,11 +1671,11 @@ wheels = [
 
 [[package]]
 name = "pip"
-version = "25.2"
+version = "26.0"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/20/16/650289cd3f43d5a2fadfd98c68bd1e1e7f2550a1a5326768cddfbcedb2c5/pip-25.2.tar.gz", hash = "sha256:578283f006390f85bb6282dffb876454593d637f5d1be494b5202ce4877e71f2", size = 1840021, upload-time = "2025-07-30T21:50:15.401Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/44/c2/65686a7783a7c27a329706207147e82f23c41221ee9ae33128fc331670a0/pip-26.0.tar.gz", hash = "sha256:3ce220a0a17915972fbf1ab451baae1521c4539e778b28127efa79b974aff0fa", size = 1812654, upload-time = "2026-01-31T01:40:54.361Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/b7/3f/945ef7ab14dc4f9d7f40288d2df998d1837ee0888ec3659c813487572faa/pip-25.2-py3-none-any.whl", hash = "sha256:6d67a2b4e7f14d8b31b8b52648866fa717f45a1eb70e83002f4331d07e953717", size = 1752557, upload-time = "2025-07-30T21:50:13.323Z" },
+    { url = "https://files.pythonhosted.org/packages/69/00/5ac7aa77688ec4d34148b423d34dc0c9bc4febe0d872a9a1ad9860b2f6f1/pip-26.0-py3-none-any.whl", hash = "sha256:98436feffb9e31bc9339cf369fd55d3331b1580b6a6f1173bacacddcf9c34754", size = 1787564, upload-time = "2026-01-31T01:40:52.252Z" },
 ]
 
 [[package]]