diff --git a/var/spack/repos/builtin/packages/clhep/package.py b/var/spack/repos/builtin/packages/clhep/package.py
index 6a7f9e44b1..6089a53054 100644
--- a/var/spack/repos/builtin/packages/clhep/package.py
+++ b/var/spack/repos/builtin/packages/clhep/package.py
@@ -19,6 +19,9 @@ class Clhep(CMakePackage):
 
     maintainers("drbenmorgan")
 
+    version("2.4.6.4", sha256="49c89330f1903ef707d3c5d79c16a7c5a6f2c90fc290e2034ee3834809489e57")
+    version("2.4.6.3", sha256="fcd007f11b10ba4af28d027222b63148d0eb44ff7a082eee353bdf921f9c684a")
+    version("2.4.6.2", sha256="aded73e49bac85a5b4e86f64a0ee3d6f3cfe5551b0f7731c78b6d8f9dac6e8dc")
     version("2.4.6.0", sha256="e8d16debb84ced28e40e9ae84789cf5a0adad45f9213fbac3ce7583e06caa7b1")
     version("2.4.5.4", sha256="983fb4ea1fe423217fe9debc709569495a62a3b4540eb790d557c5a34dffbbb6")
     version("2.4.5.3", sha256="45f63eeb097f02fe67b86a7dadbf10d409b401c28a1a3e172db36252c3097c13")