diff --git a/build-constraints.yaml b/build-constraints.yaml
index e00c433f..98adea71 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -165,8 +165,7 @@ packages:
         - cartel
         - Earley
         - ofx
-        # https://github.com/massysett/pinchot/issues/2
-        - pinchot < 0.18.0.0
+        - pinchot
         - validation
 
     "Neil Mitchell":
@@ -2313,7 +2312,7 @@ package-flags:
     # Only necessary for template-haskell < 2.11, so please
     # remove this when moving up to GHC 8.0
     pinchot:
-        oldTemplateHaskell: true
+        oldtemplatehaskell: true
 
 # end of package-flags