diff --git a/var/spack/repos/builtin/packages/r/package.py b/var/spack/repos/builtin/packages/r/package.py
index 6489a8585c8f2cc4c0709ad086a1d4b591358061..9257c5e733ddcffea5a28b2346f0345556a8106b 100644
--- a/var/spack/repos/builtin/packages/r/package.py
+++ b/var/spack/repos/builtin/packages/r/package.py
@@ -21,6 +21,7 @@ class R(AutotoolsPackage):
 
     extendable = True
 
+    version('3.6.3', sha256='89302990d8e8add536e12125ec591d6951022cf8475861b3690bc8bf1cefaa8f')
     version('3.6.2', sha256='bd65a45cddfb88f37370fbcee4ac8dd3f1aebeebe47c2f968fd9770ba2bbc954')
     version('3.6.1', sha256='5baa9ebd3e71acecdcc3da31d9042fb174d55a42829f8315f2457080978b1389')
     version('3.6.0', sha256='36fcac3e452666158e62459c6fc810adc247c7109ed71c5b6c3ad5fc2bf57509')