diff --git a/build-constraints.yaml b/build-constraints.yaml
index 9cbe0356..72d416f3 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -192,7 +192,7 @@ packages:
         - blas-carray
         - lapack-ffi
         - lapack-carray
-        - lapack-ffi-tools # 0 # GHC 8.4 via base-4.11.0.0
+        - lapack-ffi-tools
         # Not a maintainer
         - ix-shapable
 
@@ -200,7 +200,7 @@ packages:
         - threepenny-gui-flexbox < 0 # GHC 8.4 via clay
 
     "Romain Edelmann <romain.edelmann@gmail.com> @redelmann":
-        - distribution < 0 # build failure with GHC 8.4
+        - distribution # 0 # build failure with GHC 8.4
 
     "Nikita Tchayka <nikitatchayka@gmail.com> @nickseagull":
         - ramus