diff --git a/var/spack/repos/builtin/packages/zlib-ng/package.py b/var/spack/repos/builtin/packages/zlib-ng/package.py
index a6c13114528..f0618245160 100644
--- a/var/spack/repos/builtin/packages/zlib-ng/package.py
+++ b/var/spack/repos/builtin/packages/zlib-ng/package.py
@@ -19,6 +19,8 @@ class ZlibNg(AutotoolsPackage, CMakePackage):
 
     license("Zlib")
 
+    version("2.2.3", sha256="f2fb245c35082fe9ea7a22b332730f63cf1d42f04d84fe48294207d033cba4dd")
+    version("2.2.2", sha256="fcb41dd59a3f17002aeb1bb21f04696c9b721404890bb945c5ab39d2cb69654c")
     version("2.2.1", sha256="ec6a76169d4214e2e8b737e0850ba4acb806c69eeace6240ed4481b9f5c57cdf")
     version("2.1.7", sha256="59e68f67cbb16999842daeb517cdd86fc25b177b4affd335cd72b76ddc2a46d8")
     version("2.1.6", sha256="a5d504c0d52e2e2721e7e7d86988dec2e290d723ced2307145dedd06aeb6fef2")