diff --git a/stack.yaml b/stack.yaml
index 498bada3b6353819d96a9deffa9d11da7c652f90..d30ad3eb8b045ecedebf995e92c124b7a5281b5e 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -11,6 +11,7 @@ extra-deps:
 - clock-0.7.2
 - cryptohash-sha256-0.11.100.1
 - ed25519-0.0.5.0
+- edit-distance-0.2.2.1
 - exceptions-0.8.2.1
 - hackage-security-0.5.2.2
 - hashable-1.2.4.0