diff --git a/var/spack/repos/builtin/packages/netcdf/package.py b/var/spack/repos/builtin/packages/netcdf/package.py
index 38bbc4e5bac7435e3587e69a469806c9bdfd0888..313c161f7dacc52bc229e280345ee23ad42c175e 100644
--- a/var/spack/repos/builtin/packages/netcdf/package.py
+++ b/var/spack/repos/builtin/packages/netcdf/package.py
@@ -35,9 +35,10 @@ class Netcdf(Package):
     homepage = "http://www.unidata.ucar.edu/software/netcdf"
     url      = "ftp://ftp.unidata.ucar.edu/pub/netcdf/netcdf-4.3.3.tar.gz"
 
-    version('4.4.1', '7843e35b661c99e1d49e60791d5072d8')
-    version('4.4.0', 'cffda0cbd97fdb3a06e9274f7aef438e')
-    version('4.3.3', '5fbd0e108a54bd82cb5702a73f56d2ae')
+    version('4.4.1',   '7843e35b661c99e1d49e60791d5072d8')
+    version('4.4.0',   'cffda0cbd97fdb3a06e9274f7aef438e')
+    version('4.3.3.1', '5c9dad3705a3408d27f696e5b31fb88c')
+    version('4.3.3',   '5fbd0e108a54bd82cb5702a73f56d2ae')
 
     variant('mpi',     default=True,  description='Enables MPI parallelism')
     variant('hdf4',    default=False, description='Enable HDF4 support')