diff --git a/build-constraints.yaml b/build-constraints.yaml
index 757b4cce..68976da4 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -83,8 +83,7 @@ packages:
         - hmatrix-gsl
         - hxt
         - hxt-relaxng
-        # https://github.com/ekmett/hybrid-vectors/issues/1
-        # - hybrid-vectors GHC 7.10
+        - hybrid-vectors
         - indents
         - language-c
         - lhs2tex