diff --git a/build-constraints.yaml b/build-constraints.yaml
index 28dfb47b..49df130e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3281,6 +3281,7 @@ packages:
         - heterocephalus < 0 # build failure with GHC 8.4 https://github.com/arowM/heterocephalus/issues/22
         - hoogle < 0 # build failure with GHC 8.4 https://github.com/ndmitchell/hoogle/issues/245
         - hpack < 0 # build failure with GHC 8.4 https://github.com/sol/hpack/issues/276
+        - hpqtypes < 0 # build failure with GHC 8.4 https://github.com/scrive/hpqtypes/issues/7
         - hw-fingertree-strict < 0 # build failure with GHC 8.4 https://hub.darcs.net/ross/fingertree/issue/5
         - inline-c < 0 # build failure with GHC 8.4 https://github.com/fpco/inline-c/issues/73
         - list-t < 0 # build failure with GHC 8.4 # https://github.com/nikita-volkov/list-t/issues/12