diff --git a/pyproject.toml b/pyproject.toml
index 81417b0..7e57393 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,7 +36,7 @@ requires-python = ">=3.11"
 
 [project.optional-dependencies]
 doc = [
-  "babel==2.17.0",
+  "babel==2.18.0",
   "csscompressor==0.9.5",
   "ghp-import==2.1.0",
   "gitpython==3.1.50",
diff --git a/requirements.in b/requirements.in
index a172964..f5f7886 100644
--- a/requirements.in
+++ b/requirements.in
@@ -3,7 +3,7 @@ requests>=2
 dataclasses-json>=0.6
 
 # Optional dependencies: doc
-babel==2.17.0
+babel==2.18.0
 csscompressor==0.9.5
 ghp-import==2.1.0
 gitpython==3.1.50