diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 95f1a5cc0..d6dd153fb 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="5.15.15+dfsg-2"
-export PIKA_PACKAGE_NAME="qtbase-opensource-src"
+export PIKA_PACKAGE_VERSION="5.15.17+dfsg-5"
+export PIKA_PACKAGE_NAME="qtwebengine-opensource-src"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=true
 export PIKA_REBUILD_VERSION="b33"