diff --git a/rbql-js/proto_engine/builder.js b/rbql-js/proto_engine/builder.js
index e3f84f4..4a4ae38 100644
--- a/rbql-js/proto_engine/builder.js
+++ b/rbql-js/proto_engine/builder.js
@@ -14,7 +14,7 @@ const external_js_template_text = codegeneration_pseudo_function_include_combine
 // TODO replace prototypes with classes: this improves readability
 
 
-const version = '0.8.0';
+const version = '0.9.0';
 
 const GROUP_BY = 'GROUP BY';
 const UPDATE = 'UPDATE';
diff --git a/rbql-js/rbql.js b/rbql-js/rbql.js
index 8a3475d..fcf4cdf 100644
--- a/rbql-js/rbql.js
+++ b/rbql-js/rbql.js
@@ -795,7 +795,7 @@ module.exports.rb_transform = rb_transform;
 // TODO replace prototypes with classes: this improves readability
 
 
-const version = '0.8.0';
+const version = '0.9.0';
 
 const GROUP_BY = 'GROUP BY';
 const UPDATE = 'UPDATE';
diff --git a/rbql-js/web_rbql.js b/rbql-js/web_rbql.js
index 96f0036..143ddcb 100644
--- a/rbql-js/web_rbql.js
+++ b/rbql-js/web_rbql.js
@@ -799,7 +799,7 @@ module.exports.rb_transform = rb_transform;
 // TODO replace prototypes with classes: this improves readability
 
 
-const version = '0.8.0';
+const version = '0.9.0';
 
 const GROUP_BY = 'GROUP BY';
 const UPDATE = 'UPDATE';
diff --git a/rbql/_version.py b/rbql/_version.py
index 9540737..2163ab1 100644
--- a/rbql/_version.py
+++ b/rbql/_version.py
@@ -1,3 +1,3 @@
 # Explanation of this file purpose: https://stackoverflow.com/a/16084844/2898283
-__version__ = '0.8.0'
+__version__ = '0.9.0'