diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 7505ae1ee..7ad62024b 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.74.3-8"
-export PIKA_PACKAGE_NAME="libsoup2.4"
+export PIKA_PACKAGE_VERSION="6.1.0-1"
+export PIKA_PACKAGE_NAME="rust-rustfft"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"