diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index d1a1fd771..b0329f7c0 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="3.8.0-1"
-export PIKA_PACKAGE_NAME="v-sim"
+export PIKA_PACKAGE_VERSION="2025.2.18+dfsg1-4"
+export PIKA_PACKAGE_NAME="pymatgen"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"