diff --git a/build-constraints.yaml b/build-constraints.yaml
index d90e8624..d8ac5d78 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -965,7 +965,7 @@ packages:
 
     "Digital Asset <shayne@shaynefletcher.org> @shayne-fletcher":
         - ghc-lib
-        - ghc-lib-parser < 0 # https://github.com/digital-asset/ghc-lib/issues/563
+        - ghc-lib-parser
 
     "Shayne Fletcher <shayne@shaynefletcher.org> @shayne-fletcher":
         - ghc-lib-parser-ex
@@ -6724,6 +6724,7 @@ packages:
         - ghc-compact < 0 # tried ghc-compact-0.1.0.0, but its *library* requires bytestring >=0.10.6.0 && < 0.12 and the snapshot contains bytestring-0.12.1.0
         - ghc-compact < 0 # tried ghc-compact-0.1.0.0, but its *library* requires ghc-prim >=0.5.3 && < 0.11 and the snapshot contains ghc-prim-0.11.0
         - ghc-lib < 0 # tried ghc-lib-9.8.2.20240223, but its *library* requires the disabled package: ghc-lib-parser
+        - ghc-lib-parser < 0 # tried ghc-lib-parser-9.8.3.20241022, but its *library* requires happy >1.20 && < 2.0 and the snapshot contains happy-2.0.2
         - ghc-lib-parser-ex < 0 # tried ghc-lib-parser-ex-9.8.0.2, but its *library* requires the disabled package: ghc-lib-parser
         - ghc-prof < 0 # tried ghc-prof-1.4.1.12, but its *library* requires base >=4.6 && < 4.18 and the snapshot contains base-4.19.2.0
         - ghc-syb-utils < 0 # tried ghc-syb-utils-0.3.0.0, but its *library* requires ghc >=7.10 && < 8.6 and the snapshot contains ghc-9.8.3