diff --git a/pyproject.toml b/pyproject.toml
index bed93b4b..17959758 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ version = "0.1.3"
 description = "ACS Documentation"
 license = "Apache-2.0"
 requires-python = ">=3.11"
-dependencies = [ "mike>=1.2.0", "mkdocs-material>=9.6.14", "pymdown-extensions>=11.0.1",]
+dependencies = [ "mike>=1.2.0", "mkdocs-material>=9.6.14", "pymdown-extensions>=12.1",]
 
 [dependency-groups]
 dev = [ "pytest>=8.0", "jsonschema>=4.25.0",]
diff --git a/uv.lock b/uv.lock
index 9b2bdb68..4f98dca0 100644
--- a/uv.lock
+++ b/uv.lock
@@ -25,7 +25,7 @@ zizmor = [
 requires-dist = [
     { name = "mike", specifier = ">=1.2.0" },
     { name = "mkdocs-material", specifier = ">=9.6.14" },
-    { name = "pymdown-extensions", specifier = ">=11.0.1" },
+    { name = "pymdown-extensions", specifier = ">=12.1" },
 ]
 
 [package.metadata.requires-dev]
@@ -473,15 +473,15 @@ wheels = [
 
 [[package]]
 name = "pymdown-extensions"
-version = "11.0.1"
+version = "12.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "markdown" },
     { name = "pyyaml" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/21/a9/5f0c535ba3b08fe09270c16808e053a968868242ecbd5676d4e3a488bf28/pymdown_extensions-11.0.1.tar.gz", hash = "sha256:dd2905ae6fc5b75582fafb139a1266ffc754705efa902aa50067fa7ff4f94ec0", size = 857113, upload-time = "2026-07-02T17:59:22.955Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/2a/94/858e0163cb4d83d6d8234018a01792c749a56daee41794cac7d6c46661e8/pymdown_extensions-12.1.tar.gz", hash = "sha256:fdb8f47f5d7fd069d10ef2a7d8908e613d7865ff0419d544a0ffd3984e884f11", size = 868245, upload-time = "2026-09-23T00:08:42Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/d6/54/da572c98c0b77626a91b5d3b89f0231d8bff5125c225420908632f8b342d/pymdown_extensions-11.0.1-py3-none-any.whl", hash = "sha256:db3943a62bab7e03af1364f0c4083e64b91fb097675a4b6cceccfbe9a77e5eb2", size = 269455, upload-time = "2026-07-02T17:59:21.271Z" },
+    { url = "https://files.pythonhosted.org/packages/36/d1/98313da89960a604402266a115311b510254900ff1295ea426403f9423cc/pymdown_extensions-12.1-py3-none-any.whl", hash = "sha256:4a254b771acfcddc6c110a7f4590d818f1f849e2d5aacf69b4b07c8dd2a9700d", size = 277069, upload-time = "2026-09-23T00:08:40.069Z" },
 ]
 
 [[package]]