diff --git a/.gitea/workflows/tests.yml b/.gitea/workflows/tests.yml
index 5d64798..71d639f 100644
--- a/.gitea/workflows/tests.yml
+++ b/.gitea/workflows/tests.yml
@@ -17,7 +17,7 @@ jobs:
     # --- Add database service definition ---
     services:
       postgres:
-        image: postgres:18.3-alpine
+        image: postgres:18.4-alpine
         env:
           # Use secrets for DB init, with fallbacks for flexibility
           POSTGRES_USER: ${{ secrets.DB_TEST_USER || 'testuser' }}
diff --git a/.gitea/workflows/workflow.yml b/.gitea/workflows/workflow.yml
index 634616a..bdb4abd 100644
--- a/.gitea/workflows/workflow.yml
+++ b/.gitea/workflows/workflow.yml
@@ -37,7 +37,7 @@ jobs:
     # --- Add database service definition ---
     services:
       postgres:
-        image: postgres:18.3-alpine
+        image: postgres:18.4-alpine
         env:
           # Use secrets for DB init, with fallbacks for flexibility
           POSTGRES_USER: ${{ secrets.DB_TEST_USER || 'testuser' }}