diff --git a/build-constraints.yaml b/build-constraints.yaml
index 9761834d..857e9e3a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -498,7 +498,7 @@ packages:
         - psqueues
         - websockets
         - websockets-snap
-        - hakyll
+        - hakyll < 0 # via pandoc
 
     "Sibi Prabakaran <sibi@psibi.in> @psibi":
         - download
@@ -2542,8 +2542,8 @@ packages:
         - pandoc-types < 1.19 || > 1.19 # Accidental upload, see: https://github.com/fpco/stackage/issues/2223
         - zip-archive
         - doctemplates
-        - pandoc
-        - pandoc-citeproc
+        - pandoc < 0 # via haddock-library-1.6.0
+        - pandoc-citeproc < 0 # via pandoc
 
     "Karun Ramakrishnan <karun012@gmail.com> @karun012":
         - doctest-discover
@@ -3567,9 +3567,6 @@ packages:
         # https://github.com/fpco/stackage/issues/3566
         - network < 2.7
 
-        # https://github.com/fpco/stackage/issues/3650
-        - haddock-library < 1.6.0
-
         # https://github.com/ethercrow/unordered-intmap/issues/1
         # https://github.com/fpco/store/issues/131
         - primitive < 0.6.4