diff --git a/requirements.txt b/requirements.txt
index 1a8679a..7cf9107 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,5 +19,5 @@ matplotlib>=3.7
 # Executing the notebooks in CI, which is how we know they still run.
 jupyter>=1.1.1
 nbconvert>=7.17.1
-nbformat>=5.11.0
+nbformat>=5.11.1
 ipykernel>=7.3.0