diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index af96bff55..9ab2af5f1 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1.2.8-1"
-export PIKA_PACKAGE_NAME="pyreadstat"
+export PIKA_PACKAGE_VERSION="21.0.2+dfsg-1"
+export PIKA_PACKAGE_NAME="rust-wasmtime"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"