diff --git a/var/spack/repos/builtin/packages/gcc/package.py b/var/spack/repos/builtin/packages/gcc/package.py
index 0d4a9ace48..62299a51b5 100644
--- a/var/spack/repos/builtin/packages/gcc/package.py
+++ b/var/spack/repos/builtin/packages/gcc/package.py
@@ -23,6 +23,9 @@ class Gcc(AutotoolsPackage):
     list_depth = 1
 
     version('develop', svn=svn + 'trunk')
+
+    version('9.1.0', 'b6134df027e734cee5395afd739fcfa4ea319a6017d662e54e89df927dea19d3fff7a6e35d676685383034e3db01c9d0b653f63574c274eeb15a2cb0bc7a1f28')
+
     version('8.3.0', '1811337ae3add9680cec64968a2509d085b6dc5b6783fc1e8c295e3e47416196fd1a3ad8dfe7e10be2276b4f62c357659ce2902f239f60a8648548231b4b5802')
     version('8.2.0', '64898a165f67e136d802a92e7633bf1b06c85266027e52127ea025bf5fc2291b5e858288aac0bdba246e6cdf7c6ec88bc8e0e7f3f6f1985f4297710cafde56ed')
     version('8.1.0', '65f7c65818dc540b3437605026d329fc')