diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index 8c404506b..c649b0499 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="115.16.0-1"
-export PIKA_PACKAGE_NAME="mozjs115"
+export PIKA_PACKAGE_VERSION="3.7.0-1"
+export PIKA_PACKAGE_NAME="python-pyproj"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"