diff --git a/CHANGELOG.md b/CHANGELOG.md
index e17ce96170cb7445a4053a1094e2a3098531306a..8b880b7144c75c9830863559d9ccb04ff086609d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## v0.54.3 (29th May 2019)
+- Upload again to PyPi as previous release haven’t been uploaded thanks to the tag
+- Transaction: fix `time` type
+
 ## v0.54.2 (27th May 2019)
 - fix Transaction document generation
 - lock transaction document generation with a test
diff --git a/docs/conf.py b/docs/conf.py
index c93d286afc9c855b4d959f9ffb0cbb3dee440643..de0cd0369be407c984d536a56a597a2ab6e8ee50 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -72,9 +72,9 @@ author = 'caner & inso & vit'
 # built documents.
 #
 # The short X.Y version.
-version = '0.54.2'
+version = '0.54.3'
 # The full version, including alpha/beta/rc tags.
-release = '0.54.2'
+release = '0.54.3'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/duniterpy/__init__.py b/duniterpy/__init__.py
index cad4a562c15b9a3c0c47b713f6e813fd99f9acba..c4b422a824c33ef9d9e2298ace3b014cda202bcd 100644
--- a/duniterpy/__init__.py
+++ b/duniterpy/__init__.py
@@ -18,7 +18,7 @@
 
 
 __author__      = 'Caner Candan & inso & vit'
-__version__     = '0.54.2'
+__version__     = '0.54.3'
 __nonsense__    = 'duniter'
 
 from . import api, documents, key
diff --git a/duniterpy/documents/transaction.py b/duniterpy/documents/transaction.py
index cbf4417af471bee99d493f810d3ffe42ae535614..059aa5bd88f6f28e5da0dbb26b12d7016673469f 100644
--- a/duniterpy/documents/transaction.py
+++ b/duniterpy/documents/transaction.py
@@ -492,7 +492,7 @@ class Transaction(Document):
 
     def __init__(self, version: int, currency: str, blockstamp: Optional[BlockUID], locktime: int, issuers: List[str],
                  inputs: List[InputSource], unlocks: List[Unlock], outputs: List[OutputSource],
-                 comment: str, signatures: List[str], time: int = None) -> None:
+                 comment: str, signatures: List[str], time: Optional[int] = None) -> None:
         """
         Init Transaction instance