diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 2e345beb2..6dfb990c6 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.20.4-1"
-export PIKA_PACKAGE_NAME="rust-pango-sys"
+export PIKA_PACKAGE_VERSION="2.34.0-4"
+export PIKA_PACKAGE_NAME="swift"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"