diff --git a/var/spack/repos/builtin/packages/r-forecast/package.py b/var/spack/repos/builtin/packages/r-forecast/package.py
index 11d0b6ff92..cc307f472e 100644
--- a/var/spack/repos/builtin/packages/r-forecast/package.py
+++ b/var/spack/repos/builtin/packages/r-forecast/package.py
@@ -7,7 +7,9 @@
 
 
 class RForecast(RPackage):
-    """Methods and tools for displaying and analysing univariate time
+    """Forecasting Functions for Time Series and Linear Models
+
+    Methods and tools for displaying and analysing univariate time
     series forecasts including exponential smoothing via state space
     models and automatic ARIMA modelling."""
 
@@ -15,20 +17,21 @@ class RForecast(RPackage):
     url      = "https://cloud.r-project.org/src/contrib/forecast_8.2.tar.gz"
     list_url = "https://cloud.r-project.org/src/contrib/Archive/forecast"
 
+    version('8.13', sha256='490e3a2beb71c238dd26e7afa0b33394b9906dd0dc54712d4808894d5aa1386f')
     version('8.8', sha256='d077074d77d3ea00e9215c828b3689a8c841a16af1e6859bb2dfdede081c2c1d')
     version('8.6', sha256='4279e4f700e26310bae39419ab4a9b5918a850148667a5e577a4807d53eb4d02')
     version('8.2', sha256='eb3fab64ed139d068e7d026cd3880f1b623f4153a832fb71845488fa75e8b812')
 
     depends_on('r@3.0.2:', type=('build', 'run'))
-    depends_on('r-magrittr', type=('build', 'run'))
-    depends_on('r-ggplot2@2.2.1:', type=('build', 'run'))
     depends_on('r-colorspace', type=('build', 'run'))
+    depends_on('r-fracdiff', type=('build', 'run'))
+    depends_on('r-ggplot2@2.2.1:', type=('build', 'run'))
+    depends_on('r-lmtest', type=('build', 'run'))
+    depends_on('r-magrittr', type=('build', 'run'))
     depends_on('r-nnet', type=('build', 'run'))
     depends_on('r-rcpp@0.11.0:', type=('build', 'run'))
-    depends_on('r-fracdiff', type=('build', 'run'))
-    depends_on('r-tseries', type=('build', 'run'))
-    depends_on('r-lmtest', type=('build', 'run'))
-    depends_on('r-zoo', type=('build', 'run'))
     depends_on('r-timedate', type=('build', 'run'))
-    depends_on('r-rcpparmadillo@0.2.35:', type=('build', 'run'))
+    depends_on('r-tseries', type=('build', 'run'))
     depends_on('r-urca', when='@8.6:', type=('build', 'run'))
+    depends_on('r-zoo', type=('build', 'run'))
+    depends_on('r-rcpparmadillo@0.2.35:', type=('build', 'run'))