diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 6ea330c52..d0facafe2 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.5.27
+current_version = 0.5.28
 commit = True
 tag = True
 
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 58cb93b2a..a8685969f 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -32,7 +32,7 @@
 author = "ocean.py contributors"
 
 # The full version, including alpha/beta/rc tags
-release = "0.5.27"
+release = "0.5.28"
 # The short X.Y version
 release_parts = release.split(".")  # a list
 version = release_parts[0] + "." + release_parts[1]
diff --git a/ocean_lib/__init__.py b/ocean_lib/__init__.py
index 6c4770426..2dff9bdda 100644
--- a/ocean_lib/__init__.py
+++ b/ocean_lib/__init__.py
@@ -7,5 +7,5 @@
 
 __author__ = """OceanProtocol"""
 # fmt: off
-__version__ = '0.5.27'
+__version__ = '0.5.28'
 # fmt: on
diff --git a/setup.py b/setup.py
index 25ef16ca0..381e0610d 100644
--- a/setup.py
+++ b/setup.py
@@ -102,7 +102,7 @@
     url="https://github.com/oceanprotocol/ocean.py",
     # fmt: off
     # bumpversion.sh needs single-quotes
-    version='0.5.27',
+    version='0.5.28',
     # fmt: on
     zip_safe=False,
 )