diff --git a/.circleci/config.yml b/.circleci/config.yml
index c39c608..ae33ee1 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -6,6 +6,7 @@ orbs:
 # Define a job to be invoked later in a workflow.
 # See: https://circleci.com/docs/2.0/configuration-reference/#jobs
 jobs:
+
   build_and_test:
     executor: python/default
     steps:
@@ -13,8 +14,9 @@ jobs:
       - run:
           name: Install
           command: pip install .[tests]
-      # - python/install-packages:
-      #     pkg-manager: pip
+      - run:
+          name: Type checking
+          command: mypy aukpy/
       - run:
           name: Run tests
           command: python -m pytest
diff --git a/pyproject.toml b/pyproject.toml
index 46515ff..e687835 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,7 +22,9 @@ dependencies = [
 [project.optional-dependencies]
 tests = [
     "black==22.6.0",
-    "pytest==7.1.2"
+    "pytest==7.1.2",
+    "mypy==0.971",
+    "pandas-stubs==1.4.3.220807"
 ]
 docs = [
     "Sphinx==5.1.1",