diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 912054eda..334980f84 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.0.48-2"
-export PIKA_PACKAGE_NAME="php-phpseclib"
+export PIKA_PACKAGE_VERSION="27~exp7"
+export PIKA_PACKAGE_NAME="gcc-mingw-w64"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"