diff --git a/build-constraints.yaml b/build-constraints.yaml
index 03e13400..805640b4 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4877,9 +4877,6 @@ packages:
         - Win32 == 2.6.1.0
 
     "Stackage upper bounds":
-      # https://github.com/commercialhaskell/stackage/issues/5306
-      - arithmoi # 0.11.0.0
-
       # https://github.com/commercialhaskell/stackage/issues/5323
       - base64-bytestring < 1.1