diff --git a/var/spack/repos/builtin/packages/r-modeltools/package.py b/var/spack/repos/builtin/packages/r-modeltools/package.py
index 1e1c2ae390..13bea471fa 100644
--- a/var/spack/repos/builtin/packages/r-modeltools/package.py
+++ b/var/spack/repos/builtin/packages/r-modeltools/package.py
@@ -7,11 +7,19 @@
 
 
 class RModeltools(RPackage):
-    """A collection of tools to deal with statistical models."""
+    """Tools and Classes for Statistical Models
+
+    A collection of tools to deal with statistical models.  The functionality
+    is experimental and the user interface is likely to change in the future.
+    The documentation is rather terse, but packages `coin' and `party' have
+    some working examples. However, if you find the implemented ideas
+    interesting we would be very interested in a discussion of this proposal.
+    Contributions are more than welcome!"""
 
     homepage = "https://cloud.r-project.org/package=modeltools"
     url      = "https://cloud.r-project.org/src/contrib/modeltools_0.2-21.tar.gz"
     list_url = "https://cloud.r-project.org/src/contrib/Archive/modeltools"
 
+    version('0.2-23', sha256='6b3e8d5af1a039db5c178498dbf354ed1c5627a8cea9229726644053443210ef')
     version('0.2-22', sha256='256a088fc80b0d9182f984f9bd3d6207fb7c1e743f72e2ecb480e6c1d4ac34e9')
     version('0.2-21', sha256='07b331475625674ab00e6ddfc479cbdbf0b22d5d237e8c25d83ddf3e0ad1cd7a')