diff --git a/stack-ghc7.10.yaml b/stack-ghc7.10.yaml
index db378a2e1..574354f3c 100644
--- a/stack-ghc7.10.yaml
+++ b/stack-ghc7.10.yaml
@@ -12,4 +12,4 @@ packages:
 
 extra-deps:
 - brick-0.8
-- megaparsec-5.0.1
+- megaparsec-5.1.2