diff --git a/var/spack/repos/builtin/packages/r-assertive-sets/package.py b/var/spack/repos/builtin/packages/r-assertive-sets/package.py
new file mode 100644
index 00000000000..3433831c0a9
--- /dev/null
+++ b/var/spack/repos/builtin/packages/r-assertive-sets/package.py
@@ -0,0 +1,25 @@
+# Copyright 2013-2021 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack import *
+
+
+class RAssertiveSets(RPackage):
+    """assertive.sets: Assertions to Check Properties of Sets
+
+    A set of predicates and assertions for checking the
+    properties of sets. This is mainly for use by other package
+    developers who want to include run-time testing features in
+    their own packages. End-users will usually want to use
+    assertive directly."""
+
+    homepage = "https://bitbucket.org/richierocks/assertive.sets"
+    url      = "https://cloud.r-project.org/src/contrib/assertive.sets_0.0-3.tar.gz"
+    list_url = "https://cloud.r-project.org/src/contrib/Archive/assertive.sets"
+
+    version('0.0-3', sha256='876975a16ed911ea1ad12da284111c6eada6abfc0118585033abc0edb5801bb3')
+
+    depends_on('r@3.0.0:', type=('build', 'run'))
+    depends_on('r-assertive-base@0.0-7:', type=('build', 'run'))