diff --git a/var/spack/repos/builtin/packages/libidn2/package.py b/var/spack/repos/builtin/packages/libidn2/package.py
index f36da936ac..1620dd2cc8 100644
--- a/var/spack/repos/builtin/packages/libidn2/package.py
+++ b/var/spack/repos/builtin/packages/libidn2/package.py
@@ -17,6 +17,7 @@ class Libidn2(AutotoolsPackage, GNUMirrorPackage):
 
     license("GPL-2.0-or-later OR LGPL-3.0-or-later")
 
+    version("2.3.7", sha256="4c21a791b610b9519b9d0e12b8097bf2f359b12f8dd92647611a929e6bfd7d64")
     version("2.3.4", sha256="93caba72b4e051d1f8d4f5a076ab63c99b77faee019b72b9783b267986dbb45f")
     version("2.3.3", sha256="f3ac987522c00d33d44b323cae424e2cffcb4c63c6aa6cd1376edacbf1c36eb0")
     version("2.3.2", sha256="76940cd4e778e8093579a9d195b25fff5e936e9dc6242068528b437a76764f91")