diff --git a/var/spack/repos/builtin/packages/c-blosc/package.py b/var/spack/repos/builtin/packages/c-blosc/package.py
index 191fc44bde..2fb292a19d 100644
--- a/var/spack/repos/builtin/packages/c-blosc/package.py
+++ b/var/spack/repos/builtin/packages/c-blosc/package.py
@@ -14,6 +14,7 @@ class CBlosc(CMakePackage):
     homepage = "http://www.blosc.org"
     url      = "https://github.com/Blosc/c-blosc/archive/v1.11.1.tar.gz"
 
+    version('1.21.0', sha256='b0ef4fda82a1d9cbd11e0f4b9685abf14372db51703c595ecd4d76001a8b342d')
     version('1.17.0', sha256='75d98c752b8cf0d4a6380a3089d56523f175b0afa2d0cf724a1bd0a1a8f975a4')
     version('1.16.3', sha256='bec56cb0956725beb93d50478e918aca09f489f1bfe543dbd3087827a7344396')
     version('1.15.0', sha256='dbbb01f9fedcdf2c2ff73296353a9253f44ce9de89c081cbd8146170dce2ba8f')