diff --git a/requirements.txt b/requirements.txt
index 21b3192..ad2243e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 -e git://github.com/mvcisback/hypothesis-cfg@master#egg=hypothesis-cfg
 -e git://github.com/mvcisback/DiscreteSignals@master#egg=discrete-signals
-attrs==18.2.0
+attrs==19.1.0
 codecov==2.0.15
 funcy==1.11
 lenses==0.5.0