diff --git a/.github/workflows/CleanPreview.yml b/.github/workflows/CleanPreview.yml
index 1710f50..96b7021 100644
--- a/.github/workflows/CleanPreview.yml
+++ b/.github/workflows/CleanPreview.yml
@@ -6,6 +6,7 @@ on:
 
 jobs:
   doc-preview-cleanup:
+    if: false                        # disable this workflow (change if `push_preview=true` in make.jl)
     runs-on: ubuntu-latest
     permissions:
       contents: write
diff --git a/docs/make.jl b/docs/make.jl
index 4b4cdd1..8ce493a 100644
--- a/docs/make.jl
+++ b/docs/make.jl
@@ -27,5 +27,5 @@ makedocs(;
 deploydocs(;
     repo="github.com/timholy/ThickNumbers.jl",
     devbranch="main",
-    push_preview=true,
+    push_preview=false,      # see also the corresponding flag in .github/workflows/CleanPreview.yml
 )