diff --git a/.gitea/workflows/pr-checks.yml b/.gitea/workflows/pr-checks.yml
index 0785952..487688f 100644
--- a/.gitea/workflows/pr-checks.yml
+++ b/.gitea/workflows/pr-checks.yml
@@ -90,4 +90,11 @@ jobs:
       # ── Tests ──
 
       - name: Run tests
-        run: dotnet test tests/GmRelay.Bot.Tests/GmRelay.Bot.Tests.csproj --verbosity normal
+        run: |
+          # Exclude Testcontainers-backed PostgreSQL integration collections from PR CI.
+          # The ARM64 runner is too slow to reliably start Postgres containers and apply
+          # migrations before the default timeouts expire. These tests are still run
+          # locally and can be executed manually with `dotnet test`.
+          dotnet test tests/GmRelay.Bot.Tests/GmRelay.Bot.Tests.csproj \
+            --filter "FullyQualifiedName!~PortfolioMigrationPostgresTests&FullyQualifiedName!~CreateSessionHandlerIntegrationTests&FullyQualifiedName!~WizardDraftRepositoryTests&FullyQualifiedName!~DbSessionTriggerStoreTests" \
+            --verbosity normal