diff --git a/build-constraints.yaml b/build-constraints.yaml
index 091c41cd..7db5c4ad 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1916,11 +1916,11 @@ packages:
     "Michel Boucey <michel.boucey@gmail.com> @MichelBoucey":
         - IPv6Addr
         - ip6addr
-        - cayley-client < 0 # via exceptions-0.10.0
+        - cayley-client
         - Spintax
         - glabrous
         - google-oauth2-jwt
-        - IPv6DB < 0 # GHC 8.4 via hspec-2.5.0
+        - IPv6DB
 
     "koral koral@mailoo.org @k0ral":
         - atom-conduit