diff --git a/code/Ch14/pyproject.toml b/code/Ch14/pyproject.toml
index 125f241..d5366b9 100644
--- a/code/Ch14/pyproject.toml
+++ b/code/Ch14/pyproject.toml
@@ -23,7 +23,7 @@ dependencies = [
     "decorator==5.2.1",
     "executing==2.2.1",
     "fastjsonschema==2.21.2",
-    "filelock==3.20.0",
+    "filelock==3.20.1",
     "fonttools==4.60.1",
     "frozenlist==1.8.0",
     "fs==2.4.16",