diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index 8d0ea63..ec94345 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -5,6 +5,11 @@ on:
     branches: [master, main]
   pull_request:
 
+# Один runner (DESKTOP-SIR8B3R): параллельные workflow ломают кэш act/actions.
+concurrency:
+  group: eventhub-back-${{ github.ref }}
+  cancel-in-progress: false
+
 jobs:
   test:
     runs-on: ubuntu-latest
diff --git a/.gitea/workflows/deploy-ift.yml b/.gitea/workflows/deploy-ift.yml
index db835e6..aac9ef8 100644
--- a/.gitea/workflows/deploy-ift.yml
+++ b/.gitea/workflows/deploy-ift.yml
@@ -5,6 +5,10 @@ on:
     branches: [master, main]
   workflow_dispatch:
 
+concurrency:
+  group: eventhub-back-${{ github.ref }}
+  cancel-in-progress: false
+
 env:
   REGISTRY: git.sabilin.com/eventhub