diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index aff859758..d0aba1f79 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="20050106-4"
-export PIKA_PACKAGE_NAME="xblast-tnt-images"
+export PIKA_PACKAGE_VERSION="3.6.9-3"
+export PIKA_PACKAGE_NAME="dcmtk"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"