diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index ff060d3..fc228db 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -4,4 +4,4 @@ commit = False
 tag = False
 
 [bumpversion:file:rest_framework_api_key/__init__.py]
-
+[bumpversion:file:pyproject.toml]
diff --git a/.travis.yml b/.travis.yml
index 24ac909..e2936ed 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -36,4 +36,4 @@ deploy:
     tags: true
     # deploy only once
     python: "3.7"
-    condition: "$DJANGO_VERSION = 2.2"
+    condition: "$DJANGO_VERSION = 2.2.*"
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 368f2e2..b22dc08 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -46,27 +46,12 @@ $ python scripts/makemigrations.py
 - `test`: run test suite.
 - `lint`: run linters and auto-formatters.
 - `check`: check code style.
-
-### CI/CD
-
-Travis CI is in use to automatically:
-
-- Test the package on supported versions of Python and Django.
-- Release _tagged commits_ to PyPI.
-
-See `.travis.yml` for further details.
+- `bump (patch | minor | major)`: bump package version (extra options are forwared to [bumpversion](https://pypi.org/project/bumpversion/)).
 
 ### Releasing
 
-When ready to release a new version, use [bumpversion](https://pypi.org/project/bumpversion/) to update the package's version:
-
-```bash
-$ bumpversion (patch | minor | major)
-```
-
-This will create a new commit and tag that commit with the new version. See [.bumpversion.cfg](.bumpversion.cfg) for more info.
-
-Then, push the tagged commit to remote:
+- Update the package version using the `bump` script.
+- Push the tagged commit to remote:
 
 ```bash
 $ git push --tags
diff --git a/scripts/bumpversion.sh b/scripts/bump
similarity index 74%
rename from scripts/bumpversion.sh
rename to scripts/bump
index dbd2a84..1ad5f59 100755
--- a/scripts/bumpversion.sh
+++ b/scripts/bump
@@ -1,7 +1,4 @@
-#!/bin/bash
-
-# Stop if any command fails.
-set -e
+#!/bin/bash -e
 
 ARGS="$@"
 CHANGELOG="CHANGELOG.md"
@@ -14,7 +11,7 @@ CURRENT_VERSION=$(get current_version)
 NEW_VERSION=$(get new_version)
 
 bumpversion "$@" --no-tag --no-commit
-python scripts/changelog_bump.py "$CHANGELOG" "v$NEW_VERSION"
+python scripts/bump_changelog.py "$CHANGELOG" "v$NEW_VERSION"
 
 git add -A
 git commit -m "Bump version: $CURRENT_VERSION → $NEW_VERSION"
diff --git a/scripts/changelog_bump.py b/scripts/bump_changelog.py
similarity index 100%
rename from scripts/changelog_bump.py
rename to scripts/bump_changelog.py