diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 2d69033c6..f7cbaae74 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="4.31-1"
-export PIKA_PACKAGE_NAME="libmath-mpfr-perl"
+export PIKA_PACKAGE_VERSION="0.34-1"
+export PIKA_PACKAGE_NAME="libtest-dependencies-perl"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"