diff --git a/requirements.txt b/requirements.txt
index 7e370f8..42cfbcd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@
 attrs==18.2.0
 codecov==2.0.15
 funcy==1.11
-lenses==0.4.0
+lenses==0.5.0
 hypothesis==3.66.30 # pyup: ignore
 parsimonious==0.8.1
 pytest==3.2.3 # pyup: ignore