diff --git a/pagarme_surfmappers/transaction.py b/pagarme_surfmappers/transaction.py
index 77632e1..131d3ea 100644
--- a/pagarme_surfmappers/transaction.py
+++ b/pagarme_surfmappers/transaction.py
@@ -15,4 +15,4 @@ def capture(self, token, data):
         return utils.request_post(api_route, data)
 
     def calculate_installments_amount(self, data):
-        return utils.request_get(constants.CALCULE_TRANSACTION_INSTALLMENTS)
+        return utils.request_get(constants.CALCULE_TRANSACTION_INSTALLMENTS, data)
diff --git a/requirements.txt b/requirements.txt
index ec4b799..64f2bbe 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,15 +1,5 @@
-bleach==3.0.2
 certifi==2018.10.15
 chardet==3.0.4
-docutils==0.14
 idna==2.7
-pkginfo==1.4.2
-Pygments==2.3.0
-readme-renderer==24.0
 requests==2.20.1
-requests-toolbelt==0.8.0
-six==1.11.0
-tqdm==4.28.1
-twine==1.12.1
 urllib3==1.24.1
-webencodings==0.5.1
diff --git a/setup.py b/setup.py
index 1c44f63..b627d84 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@
 
 setuptools.setup(
     name='pagarme-surfmappers',
-    version='1.4.0',
+    version='1.4.1',
     description='Simple Pagar.me module made by Surfmappers.com',
     long_description=long_description,
     long_description_content_type="text/markdown",