diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 9b9b67b04..baca927af 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.15.0-1"
-export PIKA_PACKAGE_NAME="libvpx"
+export PIKA_PACKAGE_VERSION="2.6.1-2.1"
+export PIKA_PACKAGE_NAME="jam"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"