diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 0ea74f048..f0f16b38e 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="3.7.0-10"
-export PIKA_PACKAGE_NAME="php-imagick"
+export PIKA_PACKAGE_VERSION="20230111.git7f90b4a-1"
+export PIKA_PACKAGE_NAME="cl-trivial-backtrace"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"