diff --git a/README.md b/README.md
index ad0683a..6bbcda7 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ To start a Dev Keycloak instance that can show the pub.solar theme, you need to
     -e KEYCLOAK_ADMIN_PASSWORD=admin \
     -v $(pwd):/opt/keycloak/themes/pub.solar \
     -v $(pwd)/.dev-import:/opt/keycloak/data/import \
-    quay.io/keycloak/keycloak:21.1.1 \
+    quay.io/keycloak/keycloak:23.0.6 \
     start-dev --import-realm --features="declarative-user-profile"
   ```