diff --git a/.github/workflows/update-manpage.yml b/.github/workflows/update-manpage.yml
index c0e12977de..1107e7741a 100644
--- a/.github/workflows/update-manpage.yml
+++ b/.github/workflows/update-manpage.yml
@@ -1,5 +1,3 @@
-# This file is generated by ChatGPT
-
 name: Update manpage
 
 on:
@@ -19,7 +17,7 @@ jobs:
       uses: actions/checkout@v2
 
     - name: Install ronn
-      run: sudo apt-get install -y ronn
+      run: sudo apt-get update && sudo apt-get install -y ronn
 
     - name: Generate mold.1 from mold.md
       run: ronn --roff docs/mold.md