diff --git a/var/spack/repos/builtin/packages/py-rst2pdf/package.py b/var/spack/repos/builtin/packages/py-rst2pdf/package.py
index 98dcc81429b..e35da7d6364 100644
--- a/var/spack/repos/builtin/packages/py-rst2pdf/package.py
+++ b/var/spack/repos/builtin/packages/py-rst2pdf/package.py
@@ -15,12 +15,15 @@ class PyRst2pdf(PythonPackage):
 
     homepage = "https://rst2pdf.org/"
     pypi = "rst2pdf/rst2pdf-0.99.tar.gz"
+    git = "https://github.com/rst2pdf/rst2pdf.git"
 
+    version("0.100", sha256="664c3c16e6d3dea274e840a436eac4dba6cb50ab6af3162fc9d5716be3cb7b42")
     version("0.99", sha256="8fa23fa93bddd1f52d058ceaeab6582c145546d80f2f8a95974f3703bd6c8152")
 
-    depends_on("python@3.6:", type=("build", "run"))
+    depends_on("python@3.8:", when="@0.100:", type=("build", "run"))
     depends_on("py-setuptools", type="build")
     depends_on("py-setuptools-scm", type="build")
+
     depends_on("py-docutils", type=("build", "run"))
     depends_on("py-importlib-metadata", type=("build", "run"))
     depends_on("py-jinja2", type=("build", "run"))