diff --git a/.github/workflows/pkgdown.yaml b/.github/workflows/pkgdown.yaml
index 301c4a8..035802a 100644
--- a/.github/workflows/pkgdown.yaml
+++ b/.github/workflows/pkgdown.yaml
@@ -122,6 +122,7 @@ jobs:
 
     permissions:
       contents: write
+      pull-requests: write
 
     steps:
       - uses: actions/checkout@v7
@@ -144,3 +145,9 @@ jobs:
           git commit -m "Remove pkgdown preview for PR #$PR_NUMBER"
           git pull --rebase origin gh-pages
           git push origin HEAD:gh-pages
+
+      - name: Hide preview comment
+        uses: marocchino/sticky-pull-request-comment@v2
+        with:
+          hide: true
+          hide_classify: OUTDATED
diff --git a/inst/workflows/pkgdown.yaml b/inst/workflows/pkgdown.yaml
index 301c4a8..035802a 100644
--- a/inst/workflows/pkgdown.yaml
+++ b/inst/workflows/pkgdown.yaml
@@ -122,6 +122,7 @@ jobs:
 
     permissions:
       contents: write
+      pull-requests: write
 
     steps:
       - uses: actions/checkout@v7
@@ -144,3 +145,9 @@ jobs:
           git commit -m "Remove pkgdown preview for PR #$PR_NUMBER"
           git pull --rebase origin gh-pages
           git push origin HEAD:gh-pages
+
+      - name: Hide preview comment
+        uses: marocchino/sticky-pull-request-comment@v2
+        with:
+          hide: true
+          hide_classify: OUTDATED