diff --git a/etl_nested/requirements.txt b/etl_nested/requirements.txt
index 9939a9a..ee44887 100644
--- a/etl_nested/requirements.txt
+++ b/etl_nested/requirements.txt
@@ -13,7 +13,7 @@ testing.postgresql==1.3.0
 # additional dev requirements
 gprof2dot==2016.10.13
 memory_profiler==0.45
-psutil==5.2.2
+psutil==5.6.6
 sqlparse==0.2.0
 matplotlib
 jupyter