diff --git a/backend/src/test/resources/application-test.yaml b/backend/src/test/resources/application-test.yaml
index 06a4ada1..e1a2f913 100644
--- a/backend/src/test/resources/application-test.yaml
+++ b/backend/src/test/resources/application-test.yaml
@@ -23,6 +23,8 @@ otel:
 # Disable trace export in tests — prevents OTLP connection attempts when no Tempo is running.
 # Sampling probability 0.0 means no spans are created, so no export is attempted.
 management:
+  server:
+    port: 0   # random port per context — prevents TIME_WAIT conflicts when @DirtiesContext restarts the context
   tracing:
     sampling:
       probability: 0.0