diff --git a/requirements.txt b/requirements.txt
index eec21ba..baf44de 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -69,7 +69,7 @@ monotonic==1.5
 mpi4py==3.0.3
 msgpack==1.0.0
 multidict==4.7.6
-nbconvert==5.6.1
+nbconvert==6.5.1
 nbformat @ file:///home/conda/feedstock_root/build_artifacts/nbformat_1594060262917/work
 netCDF4 @ file:///home/conda/feedstock_root/build_artifacts/netcdf4_1598211499054/work
 notebook @ file:///home/conda/feedstock_root/build_artifacts/notebook_1597285192495/work
@@ -208,7 +208,7 @@ monotonic==1.5
 mpi4py==3.0.3
 msgpack==1.0.0
 multidict==4.7.6
-nbconvert==5.6.1
+nbconvert==6.5.1
 nbformat @ file:///home/conda/feedstock_root/build_artifacts/nbformat_1594060262917/work
 netCDF4 @ file:///home/conda/feedstock_root/build_artifacts/netcdf4_1598211499054/work
 notebook @ file:///home/conda/feedstock_root/build_artifacts/notebook_1597285192495/work