diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index e9f08ff98..d608eb4d5 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.82.0-1"
-export PIKA_PACKAGE_NAME="gobject-introspection"
+export PIKA_PACKAGE_VERSION="0.5.0.3-3"
+export PIKA_PACKAGE_NAME="haskell-numtype-dk"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"