diff --git a/requirements/build.in b/requirements/build.in
index f30c3261e2e7b55f9a6b1a17271a8a67a183d6b4..d6b61fce7623e360b338905a783dd838e5e0623f 100644
--- a/requirements/build.in
+++ b/requirements/build.in
@@ -8,7 +8,7 @@ virtualenv==20.4.2
 pytoolbox>=14.0.0
 toml>=0.10.2
 venv-run==0.1.0
-six==1.13.0
+six==1.15.0
 pbr==3.1.1
 pre-commit==2.10.1
 chardet==3.0.4
diff --git a/requirements/build.txt b/requirements/build.txt
index 6f5b841c72a218b2870e22f298774a34df9c4cf3..36658a3c9c2b38e5560c6b65996a5edd51ff7798 100644
--- a/requirements/build.txt
+++ b/requirements/build.txt
@@ -32,7 +32,7 @@ idna==2.10
     # via requests
 nodeenv==1.5.0
     # via pre-commit
-packaging==20.0
+packaging==20.9
     # via
     #   -r requirements/build.in
     #   build
@@ -73,7 +73,6 @@ requests==2.25.1
 six==1.13.0
     # via
     #   -r requirements/build.in
-    #   packaging
     #   virtualenv
 toml==0.10.2
     # via
diff --git a/requirements/dev.txt b/requirements/dev.txt
index 093265c942bf802baeca66f244a5045b6446739e..ba6c832e6285b065873f839569f9f7173040123a 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -185,7 +185,7 @@ numpy==1.20.1
     #   statisticaldiagrams
     #   torch
     #   visdom
-packaging==20.0
+packaging==20.9
     # via
     #   -r requirements/build.in
     #   build
@@ -339,7 +339,6 @@ six==1.13.0
     #   cycler
     #   flask-cors
     #   flask-fixtures
-    #   packaging
     #   python-dateutil
     #   sqlalchemy-utils
     #   virtualenv