diff --git a/var/spack/repos/builtin/packages/mochi-margo/package.py b/var/spack/repos/builtin/packages/mochi-margo/package.py
index 0ca314d4c7..44d05fccdd 100644
--- a/var/spack/repos/builtin/packages/mochi-margo/package.py
+++ b/var/spack/repos/builtin/packages/mochi-margo/package.py
@@ -17,6 +17,7 @@ class MochiMargo(AutotoolsPackage):
     maintainers("carns", "mdorier", "fbudin69500", "chuckatkins")
 
     version("main", branch="main")
+    version("0.12.1", sha256="ff9d0f8722aff17737cd63f27758314b2ed78e518cd45d1fb9f0e3b7ccbcef50")
     version("0.12", sha256="d9949423d87d74ae20b0e344fdc76cc7e0a62249f219b05297b8f44891f75a8e")
     version("0.11.1", sha256="ce4a61e2796df2a2c6efdfbd2d2c5a6be31e524f279b740a423ed932607503f3")
     version("0.11", sha256="3f9f30591127ecf3aac8a524c69cbc90fe3c8e68e263bda4c69b1e2c8d77ebdd")