diff --git a/definition-files/xcrysden/Singularity.xcrysden-1.6.2 b/definition-files/xcrysden/Singularity.xcrysden-1.6.2-ubuntu-18.04
similarity index 98%
rename from definition-files/xcrysden/Singularity.xcrysden-1.6.2
rename to definition-files/xcrysden/Singularity.xcrysden-1.6.2-ubuntu-18.04
index 26372a2022b1cb67ced514b7bed7a740cd1eda60..3fc774abfa489c412d9d096a1769333e1c2253aa 100644
--- a/definition-files/xcrysden/Singularity.xcrysden-1.6.2
+++ b/definition-files/xcrysden/Singularity.xcrysden-1.6.2-ubuntu-18.04
@@ -13,7 +13,7 @@ From: mkandes/naked-singularity:ubuntu-18.04
     AUTHOR_NAME Marty Kandes
     AUTHOR_EMAIL mkandes@sdsc.edu
 
-    LAST_UPDATED 20201231
+    LAST_UPDATED 20210614
 
 %setup