diff --git a/build-constraints.yaml b/build-constraints.yaml
index d01cd61a..3e289ff9 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1275,12 +1275,12 @@ packages:
         - hmatrix-gsl-stats
         - hsignal
         - hstatistics
-        # GHC 8 - plot
-        # via plot - plot-gtk
-        # via plot - plot-gtk3
+        - plot
+        - plot-gtk
+        - plot-gtk3
 
         - vector-buffer
-        # 0.1.2.1 Compilation failure against hmatrix https://github.com/amcphail/hmatrix-repa/issues/2 - hmatrix-repa
+        - hmatrix-repa
 
     "Noam Lewis <jones.noamle@gmail.com> @sinelaw":
         # via hxt-tagsoup - xml-to-json