diff --git a/nightly_test_constraints.txt b/nightly_test_constraints.txt
index 082ef586a9..7648ded059 100644
--- a/nightly_test_constraints.txt
+++ b/nightly_test_constraints.txt
@@ -216,7 +216,7 @@ matplotlib-inline==0.1.7
 mdit-py-plugins==0.4.2
 mdurl==0.1.2
 methodtools==0.4.7
-mistune==3.0.2
+mistune==3.3.0
 ml-dtypes==0.5.4
 ml-metadata>=1.21.0
 mmh==2.2
diff --git a/test_constraints.txt b/test_constraints.txt
index 4102b1f0a3..5bd24e9e81 100644
--- a/test_constraints.txt
+++ b/test_constraints.txt
@@ -216,7 +216,7 @@ matplotlib-inline==0.1.7
 mdit-py-plugins==0.4.2
 mdurl==0.1.2
 methodtools==0.4.7
-mistune==3.0.2
+mistune==3.3.0
 ml-dtypes==0.5.4
 ml-metadata>=1.21.0
 mmh==2.2