diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index a7611b8fe..aad61c6e7 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.6.3.0-3"
-export PIKA_PACKAGE_NAME="haskell-zlib"
+export PIKA_PACKAGE_VERSION="0.3.2-2"
+export PIKA_PACKAGE_NAME="liboprf"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"