diff --git a/build-constraints.yaml b/build-constraints.yaml
index 84f1d098..8aaf56f1 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -136,7 +136,7 @@ packages:
 
     "Fernando Freire <dogonthehorizon@gmail.com> @dogonthehorizon":
         []
-        # - hal # https://github.com/commercialhaskell/stackage/issues/4288
+        # - hal # #4288
 
     "Daniel Taskoff <daniel.taskoff@gmail.com> @dtaskoff":
         - hlibcpuid
@@ -217,7 +217,7 @@ packages:
         - butter < 0 # MonadFail
 
     "Iris Ward <aditu.venyhandottir@gmail.com> @AdituV":
-        - typenums < 0 # ghc 8.10.1 https://github.com/commercialhaskell/stackage/issues/5450
+        - typenums < 0 # ghc 8.10.1 #5450
 
     "Jude Taylor <me@jude.xyz> @pikajude":
         - th-printf
@@ -634,8 +634,8 @@ packages:
         - persistent-mysql < 0 # aeson 1.5
         - persistent-postgresql < 0 # aeson 1.5
         - persistent-sqlite < 0 # aeson 1.5
-        - persistent-template < 0 # https://github.com/commercialhaskell/stackage/issues/5347 & aeson 1.5
-        - persistent-test < 0 # aeson 1.5 # https://github.com/commercialhaskell/stackage/pull/4492
+        - persistent-template < 0 # #5347 & aeson 1.5
+        - persistent-test < 0 # aeson 1.5 # #4492
         # - stackage-curator # http-conduit 2.3 via amazonka
         - store < 0 # via store-core
         - wai-extra
@@ -3240,7 +3240,7 @@ packages:
 
     "Anton Gushcha <ncrashed@gmail.com> @ncrashed":
         - aeson-injector < 0 # GHC 8.4 via base-4.11.0.0
-        - JuicyPixels-blp < 0 # JuicyPixels 3.3 commercialhaskell/stackate#3818
+        - JuicyPixels-blp < 0 # JuicyPixels 3.3 #3818
 
     "Al Zohali <zohl@fmap.me> @zohl":
         # - servant-auth-cookie # servant 0.13
@@ -4704,7 +4704,7 @@ packages:
         - special-values
         - splice
         - split
-        - splitmix < 0.1  # Broken due to upper bound on QuickCheck, #5566
+        - splitmix
         - sql-words
         - stateref
         - statistics
@@ -4890,6 +4890,7 @@ packages:
       # https://github.com/commercialhaskell/stackage/issues/5566
       - QuickCheck < 2.14
       - quickcheck-instances < 0.3.24
+      - splitmix < 0.1
 
       # https://github.com/commercialhaskell/stackage/issues/5349
       - typed-uuid < 0.1.0.0