diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index a224276..eebf7ef 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -53,7 +53,7 @@ jobs:
 
     services:
       postgres:
-        image: postgres:16@sha256:71e27bf60b70bded003791b5573f8b808365613f341df20ffcf0c1ed7bc13ddf
+        image: postgres:18@sha256:78481659c47e862334611ccdaf7c369c986b3046da9857112f3b309114a65fb4
         env:
           POSTGRES_USER: postgres
           POSTGRES_PASSWORD: postgres
diff --git a/deploy/compose.yaml b/deploy/compose.yaml
index 7052adc..ffc5475 100644
--- a/deploy/compose.yaml
+++ b/deploy/compose.yaml
@@ -1,7 +1,7 @@
 services:
   postgres:
     container_name: ${COMPOSE_PROJECT_NAME:-tourplanner}-postgres
-    image: postgres:17.9@sha256:5b96f1a16bd9768b060dd2ffe55cb6225c4d9ef4d214a8b21eb08134869a97e4
+    image: postgres:18.3@sha256:78481659c47e862334611ccdaf7c369c986b3046da9857112f3b309114a65fb4
     environment:
       POSTGRES_USER: postgres
       POSTGRES_PASSWORD: postgres