Update protowhat version

hermansje · hermansje · commit 07a49926159b · 2019-06-24T12:55:51.000+02:00
diff --git a/requirements.txt b/requirements.txt
@@ -1,5 +1,5 @@
 # pythonwhat deps
-protowhat~=1.8.3
+protowhat~=1.9.0
 asttokens~=1.1.10
 dill~=0.2.7.1
 markdown2~=2.3.7
