diff --git a/var/spack/repos/builtin/packages/py-executing/package.py b/var/spack/repos/builtin/packages/py-executing/package.py
index 9e4ab81c50..f1956c15b3 100644
--- a/var/spack/repos/builtin/packages/py-executing/package.py
+++ b/var/spack/repos/builtin/packages/py-executing/package.py
@@ -13,6 +13,7 @@ class PyExecuting(PythonPackage):
     pypi = "executing/executing-0.8.2.tar.gz"
 
     version("1.1.0", sha256="2c2c07d1ec4b2d8f9676b25170f1d8445c0ee2eb78901afb075a4b8d83608c6a")
+    version("1.0.0", sha256="98daefa9d1916a4f0d944880d5aeaf079e05585689bebd9ff9b32e31dd5e1017")
     version("0.8.2", sha256="c23bf42e9a7b9b212f185b1b2c3c91feb895963378887bb10e64a2e612ec0023")
 
     depends_on("py-setuptools", type="build")