diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 2784aefa3..8cd17b6bb 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="3.0.0-1.2"
-export PIKA_PACKAGE_NAME="tpm2-abrmd"
+export PIKA_PACKAGE_VERSION="4.2.0-6"
+export PIKA_PACKAGE_NAME="gcr4"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"