diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index c4111605d..764a88876 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="27~exp6"
-export PIKA_PACKAGE_NAME="gcc-mingw-w64"
+export PIKA_PACKAGE_VERSION="3.4-1"
+export PIKA_PACKAGE_NAME="gubbins"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"