diff --git a/requirements.txt b/requirements.txt
index 6ce3c635..af38e441 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 numpy>=1.18.0
 pandas>=0.25.1
 scipy>=1.5.2
-histogrammar>=1.0.30
+histogrammar>=1.0.31
 phik
 jinja2
 tqdm