diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 334980f84..5532d7638 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="27~exp7"
-export PIKA_PACKAGE_NAME="gcc-mingw-w64"
+export PIKA_PACKAGE_VERSION="1.0.23-4"
+export PIKA_PACKAGE_NAME="phpseclib"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"