diff --git a/pika-build-config/v3.sh b/pika-build-config/v3.sh
index cdd3cbf48..9d5621aee 100644
--- a/pika-build-config/v3.sh
+++ b/pika-build-config/v3.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="3.6+dfsg1-2"
-export PIKA_PACKAGE_NAME="lazarus"
+export PIKA_PACKAGE_VERSION="2.3.0-1"
+export PIKA_PACKAGE_NAME="ocaml-multicore-magic"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b1"