Fix commercialhaskell/stackage#7341 (comment)

package.yaml

@@ -18,7 +18,7 @@ dependencies:
 - base >= 4.7 && < 5
 - mtl >= 2.2.2 && < 2.5
 - text >= 2.0.2 && < 2.2
-- text-metrics >= 0.3.2 && < 0.5
+- text-metrics >= 0.3.2 && < 0.6
 - transformers >= 0.5.6.2 && < 0.8
 - unordered-containers >= 0.2.19.1 && < 0.4
 - vector >= 0.13.0.0 && < 0.15