diff --git a/.changeset/stupid-crabs-try.md b/.changeset/stupid-crabs-try.md
new file mode 100644
index 000000000..281773f1c
--- /dev/null
+++ b/.changeset/stupid-crabs-try.md
@@ -0,0 +1,5 @@
+---
+'@portaljs/components': patch
+---
+
+Adjust `xAxisTimeUnit` property in LineChart to allow for passing `yearmonth`.
diff --git a/packages/components/src/components/LineChart.tsx b/packages/components/src/components/LineChart.tsx
index 4fc8e70d9..640843660 100644
--- a/packages/components/src/components/LineChart.tsx
+++ b/packages/components/src/components/LineChart.tsx
@@ -5,7 +5,7 @@ import loadData from '../lib/loadData';
 import { Data } from '../types/properties';
 
 type AxisType = 'quantitative' | 'temporal';
-type TimeUnit = 'year' | undefined; // or ...
+type TimeUnit = 'year' | 'yearmonth' | undefined; // or ...
 
 export type LineChartProps = {
   data: Omit<Data, 'csv'>;