diff --git a/experiments/invariant-risk-minimization/notebooks/requirements.txt b/experiments/invariant-risk-minimization/notebooks/requirements.txt
index 84de8fd..5a449a8 100644
--- a/experiments/invariant-risk-minimization/notebooks/requirements.txt
+++ b/experiments/invariant-risk-minimization/notebooks/requirements.txt
@@ -22,7 +22,7 @@ kiwisolver==1.1.0
 MarkupSafe==1.1.1
 matplotlib==3.1.3
 mistune==0.8.4
-nbconvert==5.6.1
+nbconvert==6.5.1
 nbformat==5.0.4
 notebook==6.0.3
 numpy==1.18.1