diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 7cbc130c4..23ee23d69 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -22,6 +22,7 @@ jobs:
       fail-fast: false
       matrix:
         python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        task: ['tests', 'typesafety']
 
     steps:
     - uses: actions/checkout@v3
@@ -55,6 +56,7 @@ jobs:
         poetry run pip install -U pip
 
     - name: Run tests
+      if: matrix.task == 'tests'
       run: |
         poetry run flake8 .
 
@@ -74,11 +76,14 @@ jobs:
         poetry run safety check --full-report
         poetry run python -m slotscheck returns --verbose
 
+    - name: Run typesafety tests
+      if: matrix.task == 'typesafety'
+      run: |
         # We do this to speed up the build:
         poetry run pytest typesafety -p no:cov -o addopts="" --mypy-ini-file=setup.cfg
 
     - name: Upload coverage to Codecov
-      if: ${{ matrix.python-version }} == 3.8
+      if: "matrix.task == 'tests' && matrix.python-version == 3.11"
       uses: codecov/codecov-action@v3
       with:
         file: ./coverage.xml
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d4ded1b56..8766c1d2d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,14 @@ incremental in minor, bugfixes only are patches.
 See [0Ver](https://0ver.org/).
 
 
+## 0.21.0
+
+### Features
+
+- Now requires `mypy>=1.4`
+- Adds `[compatible-mypy]` extra for installation
+
+
 ## 0.20.1
 
 ### Bugfixes
diff --git a/pyproject.toml b/pyproject.toml
index 8775f3de1..6738af0dc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "returns"
-version = "0.20.1"
+version = "0.21.0"
 description = "Make your functions return something meaningful, typed, and safe!"
 license = "BSD-3-Clause"