diff --git a/docs/changelog.md b/docs/changelog.md
index 8dd0ab6..f1424a9 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -1,3 +1,11 @@
+# [1.2.0](https://github.com/proofit404/primitives/compare/1.1.0...1.2.0) (2021-01-03)
+
+### Features
+
+- implement callable positional argument
+  [#4](https://github.com/proofit404/primitives/issues/4)
+  ([60b349b](https://github.com/proofit404/primitives/commit/60b349b022793412e7f5cb76f51438b44b35255b))
+
 # [1.1.0](https://github.com/proofit404/primitives/compare/1.0.0...1.1.0) (2021-01-02)
 
 ### Features
diff --git a/pyproject.toml b/pyproject.toml
index 7f31390..142c4e1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,7 @@ packages = [
 ]
 readme = "docs/index.md"
 repository = "https://github.com/proofit404/primitives"
-version = "1.1.0"
+version = "1.2.0"
 
 [tool.poetry.dependencies]
 python = "~3.6 || ~3.7 || ~3.8 || ~3.9"