diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 3cf62f4b..7bbf77cd 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -29,4 +29,4 @@ jobs:
           cd test/katrunner &&
           curl http://amongbytes.com/~flowher/permalinks/kat.zip --output kat.zip
           unzip kat.zip
-          cargo run -- --katdir KAT
+          cargo run --release -- --katdir KAT