diff --git a/CHANGELOG.md b/CHANGELOG.md
index d7feb30..6021bfd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,10 +1,15 @@
+# v1.0.0a5 - (16.07.2020)
+
+## 🔨 Fixed
+- fixed(**types**): make callable's worker BaseModel not optional (593377e57c2f3d447fa826c53c32d41b15fed3bb)
+
 # v1.0.0a4 - (16.07.2020)
 
 ## 💌 Added
 - added(**examples**): gateway example to crypto (67da16e8d199df69bb95dda6c9b0d0de513b0a28)
 
 ## 🔨 Fixed
-- fixed(**consumer**): wrong dict convert function was used in transform pipe
+- fixed(**consumer**): wrong dict convert function was used in transform pipe (5c96cab81c9c16c0584006e45bcf54ef80a7d595)
 - fixed(**client**): wrong json convert function was used in transform pipe (a3e77a982cc9db1fb4551b174ae8fd327c189b39)
 
 # v1.0.0a3 - (10.06.2020)
diff --git a/morpho/__version__.py b/morpho/__version__.py
index 6ba69d9..6d03f46 100644
--- a/morpho/__version__.py
+++ b/morpho/__version__.py
@@ -1 +1 @@
-__version__ = "1.0.0a4"
+__version__ = "1.0.0a5"
diff --git a/pyproject.toml b/pyproject.toml
index 21e5288..cacb933 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "morpho"
-version = "1.0.0a4"
+version = "1.0.0a5"
 description = "Framework for document transformations as microservice based web services."
 authors = ["B4rtware <34386047+B4rtware@users.noreply.github.com>"]
 license = "MIT"