diff --git a/build-constraints.yaml b/build-constraints.yaml
index 0ff21485..6d6f9031 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3754,8 +3754,6 @@ packages:
         - snap-server < 0 # GHC 8.4 via io-streams-haproxy
         - hOpenPGP < 0 # GHC 8.4 via ixset-typed
         - text-generic-pretty < 0 # GHC 8.4 via ixset-typed
-        - lzma-conduit < 0 # GHC 8.4 via lzma
-        - zim-parser < 0 # GHC 8.4 via lzma
         - heist < 0 # GHC 8.4 via map-syntax
         - mmark < 0 # GHC 8.4 via modern-uri
         - mmark-ext < 0 # GHC 8.4 via modern-uri