diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index ecd9dbe3e..4df104165 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="5.5.1-1"
-export PIKA_PACKAGE_NAME="rust-totp-rs"
+export PIKA_PACKAGE_VERSION="0.2.18-5"
+export PIKA_PACKAGE_NAME="rust-blake2-rfc"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"