1 files changed, 1 insertions, 0 deletions

diff --git a/hack.cabal b/hack.cabal
index 1e9708b..846fb59 100644
--- a/hack.cabal
+++ b/hack.cabal
@@ -16,6 +16,7 @@ Executable hack
 
   Build-depends:
     containers,
+    lens,
     mtl,
     old-locale,
     process,