diff --git a/build-constraints.yaml b/build-constraints.yaml
index 84587d3d..a4f6a2fa 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2882,6 +2882,7 @@ packages:
         - simplest-sqlite < 0
         - warp-tls-uid
         - nowdoc
+        - HaXml
 
     "Jan Gerlinger <git@jangerlinger.de> @JanGe":
         - irc-dcc < 0
@@ -4566,7 +4567,6 @@ packages:
         - PSQueue < 0 # build failure with GHC 8.4 (nowhere to report, it's ancient just let it die)
         - json-builder < 0 # build failure with GHC 8.4 https://github.com/lpsmith/json-builder/issues/2
         - type-combinators < 0 # build failure with GHC 8.4 https://github.com/kylcarte/type-combinators/issues/8
-        - HaXml < 0 # build failure with GHC 8.4
         - preprocessor-tools < 0 # build failure with GHC 8.4
         - tinytemplate < 0 # build failure with GHC 8.4
         - wai-route < 0 # BuildFailureException Process exited with ExitFailure 1: ./Setup build