diff --git a/_vendors.yml b/_vendors.yml
index b5a401d..e3801eb 100644
--- a/_vendors.yml
+++ b/_vendors.yml
@@ -12,17 +12,17 @@ fontawesome:
   alias: font-awesome
 prism:
   name: prismjs
-  version: 1.20.0
+  version: 1.21.0
   file: components/prism-core.min.js
   alias: prism
 prism_autoloader:
   name: prismjs
-  version: 1.20.0
+  version: 1.21.0
   file: plugins/autoloader/prism-autoloader.min.js
   alias: prism
 prism_line_numbers:
   name: prismjs
-  version: 1.20.0
+  version: 1.21.0
   file: plugins/line-numbers/prism-line-numbers.min.js
   alias: prism
 mathjax:
@@ -104,23 +104,23 @@ gitalk_css:
   file: dist/gitalk.css
 firebase_app:
   name: firebase
-  version: 7.17.2
+  version: 7.19.1
   file: firebase-app.js
 firebase_firestore:
   name: firebase
-  version: 7.17.2
+  version: 7.19.1
   file: firebase-firestore.js
 algolia_search:
   name: algoliasearch
-  version: 4.3.1
+  version: 4.4.0
   file: dist/algoliasearch-lite.umd.js
 instant_search:
   name: instantsearch.js
-  version: 4.7.0
+  version: 4.7.1
   file: dist/instantsearch.production.min.js
 mermaid:
   name: mermaid
-  version: 8.6.4
+  version: 8.7.0
   file: dist/mermaid.min.js
 animate_css:
   name: animate.css