diff --git a/.github/workflows/depup.yml b/.github/workflows/depup.yml
index 7e63e02..e99a989 100644
--- a/.github/workflows/depup.yml
+++ b/.github/workflows/depup.yml
@@ -30,6 +30,7 @@ jobs:
 
             This PR is auto generated by [depup workflow](https://github.com/${{ github.repository }}/actions?query=workflow%3A${{ github.workflow }}).
           branch: depup/${{ steps.depup.outputs.repo }}
+          base: master
 
   redpen:
     runs-on: ubuntu-latest
@@ -53,6 +54,7 @@ jobs:
 
             This PR is auto generated by [depup workflow](https://github.com/${{ github.repository }}/actions?query=workflow%3A${{ github.workflow }}).
           branch: depup/${{ steps.depup.outputs.repo }}
+          base: master
 
   themis:
     runs-on: ubuntu-latest
@@ -77,3 +79,4 @@ jobs:
 
             This PR is auto generated by [depup workflow](https://github.com/${{ github.repository }}/actions?query=workflow%3A${{ github.workflow }}).
           branch: depup/${{ steps.depup.outputs.repo }}
+          base: master