diff --git a/requirements.txt b/requirements.txt
index 9e2e9ae4d..c596890da 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,4 +3,4 @@
 Django==1.2.4
 wsgiref==0.1.2
 coverage==3.4
-PyYaml==3.10
+Pyyaml==3.10
diff --git a/tox.ini b/tox.ini
index 47bb3880b..5a9065334 100644
--- a/tox.ini
+++ b/tox.ini
@@ -29,6 +29,7 @@ deps=
     django==1.2.4
     coverage==3.4
     unittest-xml-reporting==1.2
+    Pyyaml==3.10
 
 [testenv:py26-django12]
 basepython=python2.6
@@ -36,6 +37,7 @@ deps=
     django==1.2.4
     coverage==3.4
     unittest-xml-reporting==1.2
+	Pyyaml==3.10
 
 [testenv:py27-django12]
 basepython=python2.7
@@ -43,28 +45,32 @@ deps=
     django==1.2.4
     coverage==3.4
     unittest-xml-reporting==1.2
-
+	Pyyaml==3.10
+	
 [testenv:py25-django13]
 basepython=python2.5
 deps=
     django==1.3
     coverage==3.4
     unittest-xml-reporting==1.2
-
+	Pyyaml==3.10
+	
 [testenv:py26-django13]
 basepython=python2.6
 deps=
     django==1.3
     coverage==3.4
 	unittest-xml-reporting==1.2
-
+	Pyyaml==3.10
+	
 [testenv:py27-django13]
 basepython=python2.7
 deps=
     django==1.3
     coverage==3.4
 	unittest-xml-reporting==1.2
-
+	Pyyaml==3.10
+	
 ####################################### EXAMPLES ################################################
     
 [testenv:py25-django12e]
@@ -79,7 +85,8 @@ deps=
 	httplib2==0.6.0
 	Markdown==2.0.3
     unittest-xml-reporting==1.2
-
+	Pyyaml==3.10
+	
 [testenv:py26-django12e]
 basepython=python2.6
 commands=
@@ -92,7 +99,8 @@ deps=
 	httplib2==0.6.0
 	Markdown==2.0.3
     unittest-xml-reporting==1.2
-
+	Pyyaml==3.10
+	
 [testenv:py27-django12e]
 basepython=python2.7
 commands=
@@ -105,7 +113,8 @@ deps=
 	httplib2==0.6.0
 	Markdown==2.0.3
     unittest-xml-reporting==1.2
-
+	Pyyaml==3.10
+	
 [testenv:py25-django13e]
 basepython=python2.5
 commands=
@@ -118,7 +127,8 @@ deps=
 	httplib2==0.6.0
 	Markdown==2.0.3
     unittest-xml-reporting==1.2
-
+	Pyyaml==3.10
+	
 [testenv:py26-django13e]
 basepython=python2.6
 commands=
@@ -131,7 +141,8 @@ deps=
 	httplib2==0.6.0
 	Markdown==2.0.3
 	unittest-xml-reporting==1.2
-
+	Pyyaml==3.10
+	
 [testenv:py27-django13e]
 basepython=python2.7
 commands=
@@ -143,4 +154,5 @@ deps=
 	Pygments==1.4
 	httplib2==0.6.0
 	Markdown==2.0.3
-	unittest-xml-reporting==1.2
\ No newline at end of file
+	unittest-xml-reporting==1.2
+	Pyyaml==3.10
\ No newline at end of file