diff --git a/lockfile.json b/lockfile.json
index 190f3e535..98ea5332a 100644
--- a/lockfile.json
+++ b/lockfile.json
@@ -108,7 +108,7 @@
     "revision": "4770eb21a36307c156cfd2555ddd8e10c304fdc3"
   },
   "haskell": {
-    "revision": "d6ccd2d9c40bdec29fee0027ef04fe5ff1ae4ceb"
+    "revision": "621fd837538b32880ddc70c20c6fe3dda2b97017"
   },
   "hcl": {
     "revision": "3cb7fc28247efbcb2973b97e71c78838ad98a583"