diff --git a/tox.ini b/tox.ini
index 023356e..a76a518 100644
--- a/tox.ini
+++ b/tox.ini
@@ -147,8 +147,8 @@ testpaths = tests
 [testenv:publish]
 passenv = TWINE_*
 deps =
-    build ~= 0.3.0
-    twine ~= 3.3.0
+    build ~= 0.4.0
+    twine ~= 3.4.0
 commands =
     {envpython} -m build --outdir {distdir} .
     twine {posargs:check} {distdir}/*