Merge "Pin pygments to 2.3.x"
diff --git a/tox.ini b/tox.ini
index e33d587..5ff30f8 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,6 +8,7 @@
 deps =
     coala==0.11
     coala-bears==0.11
+    pygments~=2.3.1
     nodeenv~=1.3.0
 commands =
     nodeenv -p