Update README.md

JeroenDeDauw · web-flow · commit 5bc3640f7ddb · 2021-03-29T13:26:32.000+02:00
diff --git a/README.md b/README.md
@@ -47,7 +47,7 @@ as [Wikimedia Germany](https://wikimedia.de) employee for the [Wikidata project]
 
 ## Release notes
 
-### 1.3.0 (2021-03-29)
+### 1.2.4 (2021-03-29)
 
 * Made component installable together with DataValues 3.x
 
