diff --git a/.github/workflows/markdown_equations.yml b/.github/workflows/markdown_equations.yml
index 0879d14bb775..624790654747 100644
--- a/.github/workflows/markdown_equations.yml
+++ b/.github/workflows/markdown_equations.yml
@@ -59,8 +59,11 @@ jobs:
           # Specify whether to remove untracked files before checking out the repository:
           clean: true
 
-          # Limit clone depth to the most recent 100 commits:
-          fetch-depth: 100
+          # Fetch full history to find when SVGs were last modified:
+          fetch-depth: 0
+
+          # Use a blobless clone to speed up the checkout:
+          filter: blob:none
 
           # Specify whether to download Git-LFS files:
           lfs: false