diff --git a/flake.lock b/flake.lock
index cb89996fc6..15b85a8241 100644
--- a/flake.lock
+++ b/flake.lock
@@ -65,16 +65,16 @@
         "z3": "z3"
       },
       "locked": {
-        "lastModified": 1728991518,
-        "narHash": "sha256-wNhKmkQ1aI5R0Gvqn9amN59fuquMRoMwi0FvE3YnH/M=",
+        "lastModified": 1729079440,
+        "narHash": "sha256-wQi5GIW51rx33FPFZE+8ug28hYhOFNmPwbwllGPOK+o=",
         "owner": "runtimeverification",
         "repo": "haskell-backend",
-        "rev": "80a580beea98ffe7fead4c104f7563fb9bea5353",
+        "rev": "4fb57a8842d04ba0ce27393f7073feb21539118b",
         "type": "github"
       },
       "original": {
         "owner": "runtimeverification",
-        "ref": "v0.1.88",
+        "ref": "v0.1.89",
         "repo": "haskell-backend",
         "type": "github"
       }