diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index af2ab9c01..3e243d155 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="2.098-1"
-export PIKA_PACKAGE_NAME="libpdl-io-dicom-perl"
+export PIKA_PACKAGE_VERSION="4.3.90.3-1"
+export PIKA_PACKAGE_NAME="gcr4"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"