diff --git a/.github/workflows/ci-slow.yaml b/.github/workflows/ci-slow.yaml
index 00f235a..76f8ca2 100644
--- a/.github/workflows/ci-slow.yaml
+++ b/.github/workflows/ci-slow.yaml
@@ -1,6 +1,6 @@
 name: CI-slow
 
-on:
+on: workflow_dispatch
 
 jobs:
   unit-tests: