diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index b277ca1a3..889dc904e 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="6.6.2-2"
-export PIKA_PACKAGE_NAME="qt6-5compat"
+export PIKA_PACKAGE_VERSION="5.15.13+dfsg-2"
+export PIKA_PACKAGE_NAME="qtlocation-opensource-src"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"