diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 0d70d8d3f..ff7f38a29 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="3.12.7-1"
-export PIKA_PACKAGE_NAME="python3-defaults"
+export PIKA_PACKAGE_VERSION="3.3.6.dfsg.2-2"
+export PIKA_PACKAGE_NAME="autoclass"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"