diff --git a/README.md b/README.md
index 568e709..427af6f 100644
--- a/README.md
+++ b/README.md
@@ -63,7 +63,7 @@ Include in `packages.yml`:
 ```yaml
 packages:
   - package: tnightengale/dbt_activity_schema
-    version: 0.3.2
+    version: 0.3.3
 ```
 For latest release, see
 https://github.com/tnightengale/dbt-activity-schema/releases.
diff --git a/dbt_project.yml b/dbt_project.yml
index 9ccd26f..4452581 100644
--- a/dbt_project.yml
+++ b/dbt_project.yml
@@ -1,7 +1,7 @@
 
 # Project name.
 name: 'dbt_activity_schema'
-version: '0.3.2'
+version: '0.3.3'
 config-version: 2
 require-dbt-version: [">=1.3.0", "<2.0.0"]
 
diff --git a/macros/utils/aggregations/_min_or_max.sql b/macros/utils/aggregations/_min_or_max.sql
index 00749e5..7041719 100644
--- a/macros/utils/aggregations/_min_or_max.sql
+++ b/macros/utils/aggregations/_min_or_max.sql
@@ -2,20 +2,20 @@
 
 {% set aggregation = "min" if min_or_max == "min" else "max" %}
 {% set column_name = qualified_col.split(".")[-1].strip() %}
-
 {% set qualified_ts_col = "{}.{}".format(dbt_activity_schema.appended(), dbt_activity_schema.columns().ts )%}
+{% set columns = dbt_activity_schema.columns() %}
 
 
 {# Set type to cast back to after aggregation. #}
 {# TODO: Refactor column abstraction to contain types. #}
 {% if column_name in [
-    "ts",
-    "activity_repeated_at"
+    columns.ts,
+    columns.activity_repeated_at
 ] %}
     {% set type = dbt.type_timestamp() %}
 {% elif column_name in [
-    "activity_occurrence",
-    "revenue_impact"
+    columns.activity_occurrence,
+    columns.revenue_impact
 ] %}
     {% set type = dbt.type_numeric() %}
 {% else %}
diff --git a/pyproject.toml b/pyproject.toml
index fa8f1e7..a514a00 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "dbt-activity-schema"
-version = "0.3.2"
+version = "0.3.3"
 description = "A dbt package to create models within the Activity Schema data model framework."
 authors = ["Teghan Nightengale <tnightengale@gmail.com>"]
 license = "GNU"