diff --git a/nix/sources.json b/nix/sources.json
index 12fa408b9df..13f9d334232 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -40,10 +40,10 @@
         "homepage": "",
         "owner": "dfinity",
         "repo": "ic-hs",
-        "rev": "9152a0ff9032c2f12846d87f562aad62a7bbe641",
-        "sha256": "0yc8nxp7ddm6i5l3w8ziwixcfp7lhsjfciv7iy8s5hb38ka0svcd",
+        "rev": "4628771102861bbb3ccee8e83e5565d177c85df9",
+        "sha256": "07m5sc30clw3sfja2xk268y6iyg7b8m9il68sdf47447cvnmqra2",
         "type": "tarball",
-        "url": "https://github.com/dfinity/ic-hs/archive/9152a0ff9032c2f12846d87f562aad62a7bbe641.tar.gz",
+        "url": "https://github.com/dfinity/ic-hs/archive/4628771102861bbb3ccee8e83e5565d177c85df9.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "libtommath": {
diff --git a/test/run-drun/ok/upgrades.ic-ref-run.ok b/test/run-drun/ok/upgrades.ic-ref-run.ok
index 97e2bcf892f..9bae6cf9083 100644
--- a/test/run-drun/ok/upgrades.ic-ref-run.ok
+++ b/test/run-drun/ok/upgrades.ic-ref-run.ok
@@ -19,7 +19,7 @@ debug.print: aa
 <= replied: ()
 => update install_code(record {arg = blob ""; kca_xin = blob "\00asm\01\00\00\00\0...
 debug.print: init'ed 1
-debug.print: current version: 3
+debug.print: current version: 5
 <= replied: ()
 => query check(3)
 debug.print: 3