diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f78884c5..80af54ef 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,6 +3,7 @@ image: quay.io/python-devs/ci-image
 stages:
   - test
   - codecov
+  - deploy
 
 qa:
   script:
@@ -34,3 +35,10 @@ codecov:
   script:
     - codecov -t $CODECOV_TOKEN
   when: on_success
+
+release:
+  stage: deploy
+  only:
+    - /^\d+\.\d+(\.\d+)?([abc]\d*)?$/
+  script:
+    - tox -e release
diff --git a/release.sh b/release.sh
deleted file mode 100755
index 26346cc7..00000000
--- a/release.sh
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/bin/bash
-
-source .tox/release/bin/activate
-pip wheel -w wheels .
-rm -rf artifacts
-mkdir artifacts
-mv wheels/importlib_resources*.whl artifacts/
-python setup.py sdist
-mv dist/importlib_resources*.tar.gz artifacts/
-rm -rf wheels dist
diff --git a/tox.ini b/tox.ini
index 32ec1da5..29c26a95 100644
--- a/tox.ini
+++ b/tox.ini
@@ -66,7 +66,17 @@ exclude =
     # to expose the version string and to handle Python 2/3 compatibility.
     importlib_resources/__init__.py
 
+
 [testenv:release]
 basepython = python3
-whitelist_externals = ./release.sh
-commands = ./release.sh
+deps =
+    twine
+    wheel
+    setuptools
+    keyring
+passenv =
+    TWINE_USERNAME
+    TWINE_PASSWORD
+commands =
+    python setup.py sdist bdist_wheel
+    python -m twine {posargs} upload dist/*