diff --git a/docs/requirements.in b/docs/requirements.in
index bb772a6..800d084 100644
--- a/docs/requirements.in
+++ b/docs/requirements.in
@@ -5,4 +5,4 @@
 mkdocs-material==9.7.7
 # Floor above the transitive default to pull the fix for CVE-2026-61632
 # (path traversal in the b64 extension); mkdocs-material only requires >=10.2.
-pymdown-extensions>=12.1
+pymdown-extensions>=12.3
diff --git a/docs/requirements.txt b/docs/requirements.txt
index 51a1ef8..5bc6cbd 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -313,9 +313,9 @@ pygments==2.20.0 \
     --hash=sha256:6757cd03768053ff99f3039c1a36d6c0aa0b263438fcab17520b30a303a82b5f \
     --hash=sha256:81a9e26dd42fd28a23a2d169d86d7ac03b46e2f8b59ed4698fb4785f946d0176
     # via mkdocs-material
-pymdown-extensions==12.1 \
-    --hash=sha256:4a254b771acfcddc6c110a7f4590d818f1f849e2d5aacf69b4b07c8dd2a9700d \
-    --hash=sha256:fdb8f47f5d7fd069d10ef2a7d8908e613d7865ff0419d544a0ffd3984e884f11
+pymdown-extensions==12.3 \
+    --hash=sha256:345493a8e3497e24382902903a1c43a28e34a52f2b7571a1c9641429b820ca74 \
+    --hash=sha256:a7f2a4e0bc60c6e6babfa7922cfb3b01cd640eb00fb208f3c582e12bae00ea67
     # via
     #   -r requirements.in
     #   mkdocs-material