diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index a6ef6a1d1..8b675a026 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.3.3~20240830-2"
-export PIKA_PACKAGE_NAME="tree-sitter-sdml"
+export PIKA_PACKAGE_VERSION="3.1.66~dfsg-2"
+export PIKA_PACKAGE_NAME="emscripten"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"