diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 5ee1c6a55..37616c986 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.10.1-1"
-export PIKA_PACKAGE_NAME="pytest-jupyter"
+export PIKA_PACKAGE_VERSION="0.3.4-3"
+export PIKA_PACKAGE_NAME="sesman"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"