diff --git a/requirements.txt b/requirements.txt
index 0a1072a1..d1901b25 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 ladybug-core==0.44.3
-ladybug-geometry-polyskel==1.7.17
+ladybug-geometry-polyskel==1.7.18
 honeybee-schema==1.58.6;python_version>='3.7'