diff --git a/requirements.txt b/requirements.txt
index c2720e89..789468e0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
 honeybee-radiance-postprocess==0.4.403
 honeybee-energy[standards]==1.106.15
 honeybee-display==0.3.8
-lbt-ladybug==0.27.90
+lbt-ladybug==0.27.91