diff --git a/docker-compose.yml b/docker-compose.yml
index aed2211ec..efe40d0c1 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -7,7 +7,17 @@ services:
     volumes:
       - ${ANNIF_PROJECTS}:/annif-projects
     user: ${MY_UID}:${MY_GID}
-    command: ["gunicorn", "annif:create_app()", "--bind", "0.0.0.0:8000", "--timeout", "600"]
+    command:
+      [
+        "gunicorn",
+        "-k",
+        "uvicorn.workers.UvicornWorker",
+        "annif:create_app()",
+        "--bind",
+        "0.0.0.0:8000",
+        "--timeout",
+        "600"
+      ]
 
   nginx:
     image: nginx