diff --git a/nowchess/eu-central-1-prod/kustomization.yaml b/nowchess/eu-central-1-prod/kustomization.yaml
index 844eb49..000fbb1 100644
--- a/nowchess/eu-central-1-prod/kustomization.yaml
+++ b/nowchess/eu-central-1-prod/kustomization.yaml
@@ -27,7 +27,7 @@ images:
 - name: ghcr.io/now-chess/now-chess-systems/coordinator
   newTag: 0.3.0
 - name: ghcr.io/now-chess/now-chess-systems/core
-  newTag: latest
+  newTag: 0.23.0
 - name: ghcr.io/now-chess/now-chess-systems/io
   newTag: latest
 - name: ghcr.io/now-chess/now-chess-systems/official-bots