diff --git a/build-constraints.yaml b/build-constraints.yaml
index f38d8d82..c667bcee 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2122,9 +2122,6 @@ expected-test-failures:
     # https://github.com/lymar/hastache/issues/47 GHC 7.10
     - hastache
 
-    # https://github.com/simonmar/alex/issues/62 GHC 7.10
-    - alex
-
     # https://github.com/acid-state/safecopy/issues/25 GHC 7.10
     - safecopy