diff --git a/pyproject.toml b/pyproject.toml
index b48ee3d..2239772 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,7 +23,8 @@ dependencies = [
   "unittest-xml-reporting",
   "parameterized",
   "CaChannel@git+https://github.com/ISISComputingGroup/CaChannel",
-  "gitpython"
+  "gitpython",
+  "mysql-connector-python != 9.6.0",  # 9.6.0 release is broken - missing wheels on pypi
 ]
 
 [project.optional-dependencies]