diff --git a/yore.cabal b/yore.cabal
index 2ead747..7ae5376 100644
--- a/yore.cabal
+++ b/yore.cabal
@@ -75,6 +75,7 @@ executable yore
     -rtsopts
     -with-rtsopts=-N
     -ghci-script=.ghci
+    -O
   build-depends:
       yore
     , base >=4.18 && <5