diff --git a/cabal.project b/cabal.project
index 9f2f926..0afdc91 100644
--- a/cabal.project
+++ b/cabal.project
@@ -1,3 +1,9 @@
 packages:
     */*.cabal,
     experimental/*/*.cabal
+
+-- Test all non-dev flags
+package unicode-data-names
+  flags: +export-all-chars
+         +has-text
+         +has-bytestring