diff --git a/thc-net/pyproject.toml b/thc-net/pyproject.toml
index 67a4beb..75568df 100755
--- a/thc-net/pyproject.toml
+++ b/thc-net/pyproject.toml
@@ -17,7 +17,7 @@ ipywidgets = "7.5.1"
 requests = "2.23.0"
 matplotlib = "3.2.1"
 numpy = "1.18.5" 
-pandas = "1.0.4" 
+pandas = "==1.2.4" 
 nb-black = "1.0.7"
 black = "19.10b0"
 jupyter_contrib_nbextensions = "0.5.1"