diff --git a/requirements.txt b/requirements.txt
index 2a04c698..da4cca2c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 fonttools[lxml,unicode,ufo]==3.43.0
 cu2qu==1.6.5
 glyphsLib==4.0.0
-ufo2ft[pathops]==2.9.0
+ufo2ft[pathops]==2.9.1
 MutatorMath==2.1.2
 defcon[lxml]==0.6.0
 booleanOperations==0.8.2
diff --git a/setup.py b/setup.py
index 9e84edc5..df90c62e 100644
--- a/setup.py
+++ b/setup.py
@@ -40,7 +40,7 @@
         "fonttools[ufo,lxml,unicode]>=3.43.0",
         "cu2qu>=1.6.5",
         "glyphsLib>=4.0.0",
-        "ufo2ft>=2.9.0",
+        "ufo2ft>=2.9.1",
         "MutatorMath>=2.1.2",
         "defcon[lxml]>=0.6.0",
         "booleanOperations>=0.8.2",