diff --git a/var/spack/repos/builtin/packages/py-schema/package.py b/var/spack/repos/builtin/packages/py-schema/package.py
index cce05b7730c..ae66aa9aaf8 100644
--- a/var/spack/repos/builtin/packages/py-schema/package.py
+++ b/var/spack/repos/builtin/packages/py-schema/package.py
@@ -14,7 +14,10 @@ class PySchema(PythonPackage):
 
     license("MIT")
 
+    version("0.7.7", sha256="7da553abd2958a19dc2547c388cde53398b39196175a9be59ea1caf5ab0a1807")
     version("0.7.5", sha256="f06717112c61895cabc4707752b88716e8420a8819d71404501e114f91043197")
 
     depends_on("py-setuptools", type="build")
-    depends_on("py-contextlib2@0.5.5:", type=("build", "run"))
+
+    depends_on("py-contextlib2@0.5.5:", type=("build", "run"), when="@:0.7.5")
+    depends_on("py-contextlib2@0.5.5:", type=("build", "run"), when="^python@:3.2")