diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 0faabfa01..bbc3d1085 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.6.0"
-export PIKA_PACKAGE_NAME="dh-sysuser"
+export PIKA_PACKAGE_VERSION="9.0.0.312~cuda12"
+export PIKA_PACKAGE_NAME="nvidia-cudnn"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"