diff --git a/base/requirements.txt b/base/requirements.txt
index 6b0180ebda51050925e30a7eb333cf19e46fa6ab..2b677124a78a2f7a413dd139be5d99b2fe1fc46a 100644
--- a/base/requirements.txt
+++ b/base/requirements.txt
@@ -48,6 +48,7 @@ statsmodels==0.13.1
 sympy==1.9
 tvb-ext-unicore==0.2.0
 tvb-widgets==1.0
+tvb-ext-xircuits==0.1a2
 vincent==0.4.4
 widgetsnbextension==3.5.2
 xlrd==2.0.1