diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index b1439b854..3af272c90 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.92+ds-1"
-export PIKA_PACKAGE_NAME="asymptote"
+export PIKA_PACKAGE_VERSION="1.20-11"
+export PIKA_PACKAGE_NAME="tclcl"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"