diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 38f53f5f2..f307bf4de 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="4:6.1.5-3"
-export PIKA_PACKAGE_NAME="plasma-workspace"
+export PIKA_PACKAGE_VERSION="0.3.6.6-13"
+export PIKA_PACKAGE_NAME="haskell-stringsearch"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"