diff --git a/Cargo.toml b/Cargo.toml
index 14c4e5ea..cb09653e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "mathcat"
-version = "0.6.7-rc.3"
+version = "0.6.7-rc.4"
 authors = ["Neil Soiffer <soiffer@alum.mit.edu>"]
 license = "MIT"
 description = "MathCAT: Math Capable Assistive Technology ('Speech and braille from MathML')"