diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index dcda1b291..1161fc921 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="4.7.0-1"
-export PIKA_PACKAGE_NAME="r-cran-matchit"
+export PIKA_PACKAGE_VERSION="5.15.16+dfsg-2"
+export PIKA_PACKAGE_NAME="qtbase-opensource-src"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"