diff --git a/sources b/sources
index 4400331..85c1e6e 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (singularity-2.5.2.tar.gz) = 1867aa053ce32e0d13f417eb086ec5f71e1773066b2a6d8aecd986a9d7b482e514dc6333e6d08ec6ea79d88642776eba3ada36d1788f1976541ac8b5d5ddd257
+SHA512 (singularity-2.5.99.tar.gz) = f050f371faa9c73ca469b74de4473200db664855bbbfe8d21e7401bf9bb9753edfcdf84175e1bda137aec6de87b9f61c1cb9ca1843310e2317cbe1954a64d64a