diff --git a/docker-compose.dev.yml b/docker-compose.dev.yml
index 4fa0ef6..cd6db37 100644
--- a/docker-compose.dev.yml
+++ b/docker-compose.dev.yml
@@ -84,11 +84,16 @@ services:
       target: runtime-celery
     container_name: mostovik_celery_worker
     restart: unless-stopped
+    environment:
+      CELERY_WORKER_CONCURRENCY: "1"
+      CELERY_WORKER_MAX_MEMORY_PER_CHILD_KB: "3145728"
     env_file:
       - .env.dev
     depends_on:
       migrate:
         condition: service_completed_successfully
+    mem_limit: 3g
+    memswap_limit: 3g
     volumes:
       - ./src:/app/src
       - ./logs:/app/logs
diff --git a/docker-compose.prod.yml b/docker-compose.prod.yml
index 73e2e4b..02df776 100644
--- a/docker-compose.prod.yml
+++ b/docker-compose.prod.yml
@@ -48,11 +48,16 @@ services:
     image: ${CELERY_IMAGE:-mostovik/celery:latest}
     container_name: mostovik_celery_worker
     restart: unless-stopped
+    environment:
+      CELERY_WORKER_CONCURRENCY: "1"
+      CELERY_WORKER_MAX_MEMORY_PER_CHILD_KB: "3145728"
     env_file:
       - .env.prod
     depends_on:
       migrate:
         condition: service_completed_successfully
+    mem_limit: 3g
+    memswap_limit: 3g
     volumes:
       - ./logs:/app/logs
       - ./input:/app/input
diff --git a/docker/scripts/start-celery-worker.sh b/docker/scripts/start-celery-worker.sh
index 757bdab..68e394a 100755
--- a/docker/scripts/start-celery-worker.sh
+++ b/docker/scripts/start-celery-worker.sh
@@ -17,4 +17,5 @@ esac
 
 exec celery -A core worker \
   --loglevel="${CELERY_LOG_LEVEL:-INFO}" \
-  --concurrency="${CELERY_WORKER_CONCURRENCY:-2}"
+  --concurrency="${CELERY_WORKER_CONCURRENCY:-1}" \
+  --max-memory-per-child="${CELERY_WORKER_MAX_MEMORY_PER_CHILD_KB:-3145728}"