diff --git a/base/requirements.txt b/base/requirements.txt
index 46e2e22b569984b906ceca42df5f2ada8d0a78da..d4752f9908069627e0dc66d858b84edc26a846b7 100644
--- a/base/requirements.txt
+++ b/base/requirements.txt
@@ -48,6 +48,7 @@ statsmodels==0.13.1
 sympy==1.9
 tvb-ext-unicore==0.3.0
 tvb-widgets==1.0
+tvb-ext-xircuits==0.1a2
 vincent==0.4.4
 widgetsnbextension==3.5.2
 xlrd==2.0.1