diff --git a/var/spack/repos/builtin/packages/r-data-table/package.py b/var/spack/repos/builtin/packages/r-data-table/package.py
index e22dace104..000f1d802e 100644
--- a/var/spack/repos/builtin/packages/r-data-table/package.py
+++ b/var/spack/repos/builtin/packages/r-data-table/package.py
@@ -7,7 +7,9 @@
 
 
 class RDataTable(RPackage):
-    """Fast aggregation of large data (e.g. 100GB in RAM), fast ordered joins,
+    """Extension of `data.frame`
+
+    Fast aggregation of large data (e.g. 100GB in RAM), fast ordered joins,
     fast add/modify/delete of columns by group using no copies at all, list
     columns and a fast file reader (fread). Offers a natural and flexible
     syntax, for faster development."""
@@ -16,6 +18,7 @@ class RDataTable(RPackage):
     url      = "https://cloud.r-project.org/src/contrib/data.table_1.10.0.tar.gz"
     list_url = "https://cloud.r-project.org/src/contrib/Archive/data.table"
 
+    version('1.13.6', sha256='d50cdd4c4f89cabf83baa9114e49a3b8179f403c499d6e0be7791a44ffcd3e9b')
     version('1.12.8', sha256='d3a75f3a355ff144cc20a476041617e21fcf2a9f79265fd9bbd4693f3671f9dc')
     version('1.12.2', sha256='db55c18f0d703a8bc1c806dd1f7551bb405cb867717f52ef9dd64405394d22f5')
     version('1.12.0', sha256='611b112123dbd4ebd5200770fcdfaaeaab622adeb2b290d36018d3092742e3f7')
@@ -34,3 +37,4 @@ class RDataTable(RPackage):
     version('1.9.6',    sha256='6f74c349c1731823aef6899edcf18418454167d04eba983e3a6fe17ee9fd236e')
 
     depends_on('r@3.1.0:', type=('build', 'run'))
+    depends_on('zlib')