1 files changed, 4 insertions, 1 deletions
diff --git a/tox.ini b/tox.ini
index 17db5c10..a29724c5 100644
--- a/tox.ini
+++ b/tox.ini
@@ -32,7 +32,7 @@ deps =
     py26,py27,py33,py34,py35: greenlet==0.4.7
 
 setenv =
-    pypy24,pypy26,pypy3_24: COVERAGE_NO_EXTENSION=no C extensions under PyPy
+    pypy24,pypy25,pypy26,pypy3_24: COVERAGE_NO_EXTENSION=no C extensions under PyPy
 
 usedevelop = True
 passenv = *
@@ -40,6 +40,9 @@ passenv = *
 [testenv:pypy24]
 basepython = pypy2.4
 
+[testenv:pypy25]
+basepython = pypy2.5
+
 [testenv:pypy26]
 basepython = pypy2.6