diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index bf48720ab..f5ca39f5d 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="1:0.6-5+dfsg-1"
-export PIKA_PACKAGE_NAME="r-cran-rsdmx"
+export PIKA_PACKAGE_VERSION="0.38-3"
+export PIKA_PACKAGE_NAME="libmodule-compile-perl"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"