diff --git a/.gitignore b/.gitignore
index b4f52e8..b214bfa 100644
--- a/.gitignore
+++ b/.gitignore
@@ -250,5 +250,5 @@ cython_debug/
 
 # End of https://www.toptal.com/developers/gitignore/api/python,pycharm
 
-day-summary/*
+day-summary/
 *.checkpoint
\ No newline at end of file
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..3e224a8
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,6 @@
+clean:
+	rm -rf .venv day-summary *.checkpoint .pytest_cache .coverage
+
+init: clean
+	pip install poetry
+	poetry install
\ No newline at end of file
diff --git a/mercado_bitcoin/apis.py b/mercado_bitcoin/apis.py
index 38a11ea..2bd435b 100644
--- a/mercado_bitcoin/apis.py
+++ b/mercado_bitcoin/apis.py
@@ -20,7 +20,7 @@ def __init__(self, coin: str) -> None:
     def _get_endpoint(self, **kwargs) -> str:
         pass
 
-    @on_exception(constant, ratelimit.exception.RateLimitException, max_tries=10)
+    @on_exception(expo, ratelimit.exception.RateLimitException, max_tries=15)
     @ratelimit.limits(calls=30, period=30)
     @on_exception(expo, requests.exceptions.HTTPError, max_tries=10)
     def get_data(self, **kwargs) -> dict:
diff --git a/poetry.lock b/poetry.lock
new file mode 100644
index 0000000..57154a5
--- /dev/null
+++ b/poetry.lock
@@ -0,0 +1,104 @@
+[[package]]
+name = "backoff"
+version = "1.10.0"
+description = "Function decoration for backoff and retry"
+category = "main"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+
+[[package]]
+name = "certifi"
+version = "2021.5.30"
+description = "Python package for providing Mozilla's CA Bundle."
+category = "main"
+optional = false
+python-versions = "*"
+
+[[package]]
+name = "chardet"
+version = "4.0.0"
+description = "Universal encoding detector for Python 2 and 3"
+category = "main"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+
+[[package]]
+name = "idna"
+version = "2.10"
+description = "Internationalized Domain Names in Applications (IDNA)"
+category = "main"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+
+[[package]]
+name = "ratelimit"
+version = "2.2.1"
+description = "API rate limit decorator"
+category = "main"
+optional = false
+python-versions = "*"
+
+[[package]]
+name = "requests"
+version = "2.25.1"
+description = "Python HTTP for Humans."
+category = "main"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+
+[package.dependencies]
+certifi = ">=2017.4.17"
+chardet = ">=3.0.2,<5"
+idna = ">=2.5,<3"
+urllib3 = ">=1.21.1,<1.27"
+
+[package.extras]
+security = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)"]
+socks = ["PySocks (>=1.5.6,!=1.5.7)", "win-inet-pton"]
+
+[[package]]
+name = "urllib3"
+version = "1.26.6"
+description = "HTTP library with thread-safe connection pooling, file post, and more."
+category = "main"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <4"
+
+[package.extras]
+brotli = ["brotlipy (>=0.6.0)"]
+secure = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)", "idna (>=2.0.0)", "certifi", "ipaddress"]
+socks = ["PySocks (>=1.5.6,!=1.5.7,<2.0)"]
+
+[metadata]
+lock-version = "1.1"
+python-versions = "^3.8"
+content-hash = "1988701f2fc16b6e26d48b38a9add8dc18bbf8f3df074a2373230147d608be97"
+
+[metadata.files]
+backoff = [
+    {file = "backoff-1.10.0-py2.py3-none-any.whl", hash = "sha256:5e73e2cbe780e1915a204799dba0a01896f45f4385e636bcca7a0614d879d0cd"},
+    {file = "backoff-1.10.0.tar.gz", hash = "sha256:b8fba021fac74055ac05eb7c7bfce4723aedde6cd0a504e5326bcb0bdd6d19a4"},
+]
+certifi = [
+    {file = "certifi-2021.5.30-py2.py3-none-any.whl", hash = "sha256:50b1e4f8446b06f41be7dd6338db18e0990601dce795c2b1686458aa7e8fa7d8"},
+    {file = "certifi-2021.5.30.tar.gz", hash = "sha256:2bbf76fd432960138b3ef6dda3dde0544f27cbf8546c458e60baf371917ba9ee"},
+]
+chardet = [
+    {file = "chardet-4.0.0-py2.py3-none-any.whl", hash = "sha256:f864054d66fd9118f2e67044ac8981a54775ec5b67aed0441892edb553d21da5"},
+    {file = "chardet-4.0.0.tar.gz", hash = "sha256:0d6f53a15db4120f2b08c94f11e7d93d2c911ee118b6b30a04ec3ee8310179fa"},
+]
+idna = [
+    {file = "idna-2.10-py2.py3-none-any.whl", hash = "sha256:b97d804b1e9b523befed77c48dacec60e6dcb0b5391d57af6a65a312a90648c0"},
+    {file = "idna-2.10.tar.gz", hash = "sha256:b307872f855b18632ce0c21c5e45be78c0ea7ae4c15c828c20788b26921eb3f6"},
+]
+ratelimit = [
+    {file = "ratelimit-2.2.1.tar.gz", hash = "sha256:af8a9b64b821529aca09ebaf6d8d279100d766f19e90b5059ac6a718ca6dee42"},
+]
+requests = [
+    {file = "requests-2.25.1-py2.py3-none-any.whl", hash = "sha256:c210084e36a42ae6b9219e00e48287def368a26d03a048ddad7bfee44f75871e"},
+    {file = "requests-2.25.1.tar.gz", hash = "sha256:27973dd4a904a4f13b263a19c866c13b92a39ed1c964655f025f3f8d3d75b804"},
+]
+urllib3 = [
+    {file = "urllib3-1.26.6-py2.py3-none-any.whl", hash = "sha256:39fb8672126159acb139a7718dd10806104dec1e2f0f6c88aab05d17df10c8d4"},
+    {file = "urllib3-1.26.6.tar.gz", hash = "sha256:f57b4c16c62fa2760b7e3d97c35b255512fb6b59a259730f36ba32ce9f8e342f"},
+]
diff --git a/poetry.toml b/poetry.toml
new file mode 100644
index 0000000..53b35d3
--- /dev/null
+++ b/poetry.toml
@@ -0,0 +1,3 @@
+[virtualenvs]
+create = true
+in-project = true
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..01f5eeb
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,17 @@
+[tool.poetry]
+name = "mercado_bitcoin_lambda"
+version = "0.1.0"
+description = ""
+authors = ["Andre <andresionek91@gmail.com>"]
+
+[tool.poetry.dependencies]
+python = "^3.8"
+requests = "^2.25.1"
+ratelimit = "^2.2.1"
+backoff = "^1.10.0"
+
+[tool.poetry.dev-dependencies]
+
+[build-system]
+requires = ["poetry-core>=1.0.0"]
+build-backend = "poetry.core.masonry.api"
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index 663bd1f..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1 +0,0 @@
-requests
\ No newline at end of file