diff --git a/build-constraints.yaml b/build-constraints.yaml
index ca018627..f5c59725 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4393,7 +4393,7 @@ packages:
         - attoparsec
         - auto-update
         - base-noprelude < 0 # ghc 8.10
-        - base64-bytestring
+        - base64-bytestring < 1.1 # https://github.com/commercialhaskell/stackage/issues/5569
         - base64-bytestring-type
         - base64-string
         - bimap
@@ -4877,9 +4877,6 @@ packages:
         - Win32 == 2.6.1.0
 
     "Stackage upper bounds":
-      # https://github.com/commercialhaskell/stackage/issues/5323
-      - base64-bytestring # 1.1
-
       # https://github.com/commercialhaskell/stackage/issues/5324
       - cabal2nix < 2.15.2