diff --git a/requirements.txt b/requirements.txt
index 2b775d8..2c6c1ef 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -36,7 +36,7 @@ jupyter==1.0.0
 llvmlite==0.34.0; python_version >= '3.6'

 markupsafe==1.1.1; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'

 mistune==0.8.4

-nbconvert==5.6.1; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'

+nbconvert==6.5.1; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'

 nbformat==5.0.7; python_version >= '3.5'

 notebook==6.1.5; python_version >= '3.5'

 numba==0.51.0