diff --git a/doc/internals/polling-states.fig b/doc/internals/polling-states.fig
index 4df9386..064e6bb 100644
--- a/doc/internals/polling-states.fig
+++ b/doc/internals/polling-states.fig
@@ -1,4 +1,4 @@
-#FIG 3.2  Produced by xfig version 3.2.7a
+#FIG 3.2  Produced by xfig version 2.1
 Portrait
 Center
 Metric