diff --git a/CHANGELOG.md b/CHANGELOG.md
index 171278a9..8a589a84 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## v.0.21
+
+### Fixes
+
+- Resolves bug for running incremental models where the macro `alter_column_type` had incorrect syntax
+
 ## v.0.20.0
 
 ### Features
diff --git a/dbt/include/synapse/macros/adapters.sql b/dbt/include/synapse/macros/adapters.sql
index d46d7c74..07c64150 100644
--- a/dbt/include/synapse/macros/adapters.sql
+++ b/dbt/include/synapse/macros/adapters.sql
@@ -71,7 +71,7 @@
 {# TODO instead of deleting it...  #}
 {% macro synapse__rename_relation(from_relation, to_relation) -%}
   {% call statement('rename_relation') -%}
-  
+
     rename object {{ from_relation.include(database=False) }} to {{ to_relation.identifier }}
   {%- endcall %}
 {% endmacro %}
@@ -158,3 +158,18 @@
   {% set table = load_result('get_columns_in_relation').table %}
   {{ return(sql_convert_columns_in_relation(table)) }}
 {% endmacro %}
+
+{% macro synapse__alter_column_type(relation, column_name, new_column_type) %}
+
+  {%- set tmp_column = column_name + "__dbt_alter" -%}
+
+  {% call statement('alter_column_type') -%}
+
+    alter {{ relation.type }} {{ relation }} add {{ tmp_column }} {{ new_column_type }};
+    update {{ relation }} set {{ tmp_column }} = {{ column_name }};
+    alter {{ relation.type }} {{ relation }} drop column {{ column_name }};
+    exec sp_rename '{{ relation | replace('"', '') }}.{{ tmp_column }}', '{{ column_name }}', 'column'
+
+  {%- endcall -%}
+
+{% endmacro %}