diff --git a/.github/workflows/linting.yml b/.github/workflows/linting.yml
index f09c11d0..ae77c586 100644
--- a/.github/workflows/linting.yml
+++ b/.github/workflows/linting.yml
@@ -23,3 +23,9 @@ jobs:
     - name: Analysing the code with Black
       run: |
         black --check .
+    - name: Analysing the code with mypy
+      run: |
+        mypy --install-types --non-interactive ./mindee
+    - name: Analysing the code with pylint
+      run: |
+        pylint ./mindee
diff --git a/mindee/__init__.py b/mindee/__init__.py
index 32b98aef..5f718e30 100644
--- a/mindee/__init__.py
+++ b/mindee/__init__.py
@@ -19,7 +19,7 @@
 }
 
 
-class Client(object):
+class Client:
     def __init__(
         self,
         expense_receipt_token=None,
@@ -231,7 +231,7 @@ def parse_financial_document(
         return self._wrap_response(input_file, response, "financial_document")
 
 
-class Response(object):
+class Response:
     def __init__(
         self, http_response=None, pages=None, document=None, document_type=None
     ):
@@ -311,7 +311,7 @@ def format_response(json_response, document_type, input_file):
             raise Exception("Document type not supported.")
 
         # Create page level objects
-        for page_n, page_prediction in enumerate(
+        for _, page_prediction in enumerate(
             json_response["document"]["inference"]["pages"]
         ):
             pages.append(
diff --git a/mindee/documents/__init__.py b/mindee/documents/__init__.py
index 4655b9d5..1ee36e56 100644
--- a/mindee/documents/__init__.py
+++ b/mindee/documents/__init__.py
@@ -1,4 +1,4 @@
-class Document(object):
+class Document:
     def __init__(self, input_file=None):
         self.filepath = None
         self.filename = None
@@ -11,6 +11,7 @@ def __init__(self, input_file=None):
         self.checklist = {}
 
     def request(self, *args):
+        """Make request to the product endpoint"""
         raise NotImplementedError()
 
     def _checklist(self, *args):
@@ -20,4 +21,5 @@ def _reconstruct(self, *args):
         pass
 
     def all_checks(self):
+        """Return all checks"""
         return all(self.checklist)
diff --git a/mindee/documents/car_plate.py b/mindee/documents/car_plate.py
index cc2c4927..f23f946e 100644
--- a/mindee/documents/car_plate.py
+++ b/mindee/documents/car_plate.py
@@ -1,7 +1,6 @@
 from mindee.documents import Document
 from mindee.fields import Field
 from mindee.http import make_api_request, make_predict_url
-import os
 
 
 class CarPlate(Document):
@@ -46,7 +45,7 @@ def build_from_api_prediction(self, api_prediction, page_n=0):
             for license_plate in api_prediction["license_plates"]
         ]
 
-    def __str__(self):
+    def __str__(self) -> str:
         return (
             "-----Car plate data-----\n"
             "Filename: %s\n"
diff --git a/mindee/documents/financial_document.py b/mindee/documents/financial_document.py
index 6fb46bb8..6ee2a73e 100644
--- a/mindee/documents/financial_document.py
+++ b/mindee/documents/financial_document.py
@@ -8,7 +8,6 @@
 from mindee.http import make_api_request, make_predict_url
 from mindee.documents.invoice import Invoice
 from mindee.documents.receipt import Receipt
-import os
 
 
 class FinancialDocument(Document):
@@ -159,7 +158,7 @@ def build_from_api_prediction(self, api_prediction, input_file, page_n=0):
             self.payment_details = []
             self.company_number = []
 
-    def __str__(self):
+    def __str__(self) -> str:
         return (
             "-----Financial Document data-----\n"
             "Filename: %s \n"
diff --git a/mindee/documents/invoice.py b/mindee/documents/invoice.py
index 1351350f..b34702bc 100644
--- a/mindee/documents/invoice.py
+++ b/mindee/documents/invoice.py
@@ -7,7 +7,6 @@
 from mindee.fields.payment_details import PaymentDetails
 from mindee.fields.tax import Tax
 from mindee.http import make_api_request, make_predict_url
-import os
 
 
 class Invoice(Document):
@@ -153,7 +152,7 @@ def build_from_api_prediction(self, api_prediction, page_n=0):
             {"value": None, "probability": 0.0}, value_key="value", page_n=page_n
         )
 
-    def __str__(self):
+    def __str__(self) -> str:
         return (
             "-----Invoice data-----\n"
             "Filename: %s \n"
diff --git a/mindee/documents/passport.py b/mindee/documents/passport.py
index 01a04c3b..02f36ede 100644
--- a/mindee/documents/passport.py
+++ b/mindee/documents/passport.py
@@ -1,9 +1,8 @@
+from datetime import datetime
 from mindee.documents import Document
 from mindee.fields import Field
 from mindee.fields.date import Date
-from datetime import datetime
 from mindee.http import make_api_request, make_predict_url
-import os
 
 
 class Passport(Document):
@@ -127,7 +126,7 @@ def build_from_api_prediction(self, api_prediction, page_n=0):
         self.mrz = Field({"value": None, "probability": 0.0}, page_n=page_n)
         self.full_name = Field({"value": None, "probability": 0.0}, page_n=page_n)
 
-    def __str__(self):
+    def __str__(self) -> str:
         return (
             "-----Passport data-----\n"
             "Filename: %s \n"
diff --git a/mindee/documents/receipt.py b/mindee/documents/receipt.py
index c3e0be62..cb99878c 100644
--- a/mindee/documents/receipt.py
+++ b/mindee/documents/receipt.py
@@ -6,7 +6,6 @@
 from mindee.fields.orientation import Orientation
 from mindee.fields.tax import Tax
 from mindee.http import make_api_request, make_predict_url
-import os
 
 
 class Receipt(Document):
@@ -95,7 +94,7 @@ def __init__(
         # Reconstruct extra fields
         self._reconstruct()
 
-    def __str__(self):
+    def __str__(self) -> str:
         return (
             "-----Receipt data-----\n"
             "Filename: %s\n"
diff --git a/mindee/fields/__init__.py b/mindee/fields/__init__.py
index f16785e2..9ae9cac4 100644
--- a/mindee/fields/__init__.py
+++ b/mindee/fields/__init__.py
@@ -1,4 +1,4 @@
-class Field(object):
+class Field:
     def __init__(
         self,
         abstract_prediction,
diff --git a/mindee/http.py b/mindee/http.py
index 0ca8dfad..f22eb31a 100644
--- a/mindee/http.py
+++ b/mindee/http.py
@@ -3,7 +3,7 @@
 
 MINDEE_API_URL = "https://api.mindee.net/v1"
 
-platform = get_platform()
+PLATFORM = get_platform()
 
 
 def make_predict_url(product: str, version: str, owner: str = "mindee") -> str:
@@ -30,7 +30,7 @@ def make_api_request(url: str, input_file, token: str, include_words: bool = Fal
     files = {"document": (input_file.filename, input_file.file_object.read())}
     headers = {
         "Authorization": f"Token {token}",
-        "User-Agent": f"mindee-api-python@v{__version__} python-v{python_version} {platform}",
+        "User-Agent": f"mindee-api-python@v{__version__} python-v{python_version} {PLATFORM}",
     }
 
     params = {}
diff --git a/mindee/inputs.py b/mindee/inputs.py
index b5f8d79d..45961997 100644
--- a/mindee/inputs.py
+++ b/mindee/inputs.py
@@ -1,11 +1,11 @@
-import fitz
 import io
 import os
 from base64 import decodebytes
 from mimetypes import guess_type
+import fitz
 
 
-class Inputs(object):
+class Inputs:
     def __init__(
         self, file, input_type="path", filename=None, cut_pdf=True, n_pdf_pages=3
     ):
@@ -119,7 +119,7 @@ def merge_pdf_pages(self, pages_number):
             width = spage.MediaBoxSize[0]
             height = spage.MediaBoxSize[1]
             r = fitz.Rect(0, 0, width, height)
-            page = doc.newPage(-1, width=width, height=height)
+            page = doc.new_page(-1, width=width, height=height)
             try:
                 page.showPDFpage(r, src, spage.number)
             except:
diff --git a/mindee/versions.py b/mindee/versions.py
index 43f45f82..6996b60b 100644
--- a/mindee/versions.py
+++ b/mindee/versions.py
@@ -10,6 +10,7 @@
 
 
 def get_platform() -> str:
+    """Get the current OS platform."""
     platforms = {
         "linux": "linux",
         "win32": "windows",
diff --git a/pyproject.toml b/pyproject.toml
index e2dd2233..5e44d396 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,5 +3,34 @@ line-length = 88
 target-version = ['py35', 'py36', 'py37']
 include = '\.pyi?$'
 
-[tool.mypy]
+[[tool.mypy.overrides]]
+module = ['fitz',]
 ignore_missing_imports = true
+
+[tool.pylint.'MESSAGES CONTROL']
+disable=[
+  'line-too-long',
+  'bare-except',
+  'consider-using-set-comprehension',
+  'missing-class-docstring',
+  'missing-module-docstring',
+  'super-with-arguments',
+  'no-else-return',
+  'too-many-instance-attributes',
+  'too-many-locals',
+  'too-many-arguments',
+  'duplicate-code',
+  'unidiomatic-typecheck',
+  'arguments-differ',
+  'inconsistent-return-statements',
+  'invalid-name',
+  'super-init-not-called',
+  'no-else-raise',
+  'raise-missing-from',
+  'consider-iterating-dictionary',
+  'unspecified-encoding',
+  'use-implicit-booleaness-not-len',
+  'unnecessary-pass',
+  'consider-using-f-string',
+  'consider-using-with',
+]
diff --git a/setup.py b/setup.py
index 3671290d..84156d82 100644
--- a/setup.py
+++ b/setup.py
@@ -16,9 +16,9 @@
 
 
 requirements = [
-    "requests==2.25.1",
     "pytz==2021.3",
     "PyMuPDF==1.18.17",
+    "requests==2.25.1",
 ]
 
 test_requirements = [
@@ -28,8 +28,10 @@
 
 dev_requirements = [
     "black==21.12b0",
-    "setuptools==49.2.0",
+    "mypy==0.931",
     "pip-tools==6.4.0",
+    "pylint==2.12.2",
+    "setuptools==49.2.0",
 ]
 
 setup(