diff --git a/repos/builder/opts.yml b/repos/builder/opts.yml
index 072bc63..a4aaadf 100644
--- a/repos/builder/opts.yml
+++ b/repos/builder/opts.yml
@@ -14,7 +14,7 @@ gems:
     - jekyll-sitemap
     - jekyll-mentions
     - jekyll-coffeescript
-    - jekyll-sass-converter
+    - jekyll-sass-converter:'< 3'
     - jekyll-redirect-from
     - jekyll-paginate
     - jekyll-compose
diff --git a/repos/jekyll/opts.yml b/repos/jekyll/opts.yml
index 3b44798..850b30a 100644
--- a/repos/jekyll/opts.yml
+++ b/repos/jekyll/opts.yml
@@ -7,7 +7,7 @@ gems:
     - jekyll-reload
     - jekyll-mentions
     - jekyll-coffeescript
-    - jekyll-sass-converter
+    - jekyll-sass-converter:'< 3'
     - jekyll-commonmark
     - jekyll-paginate
     - jekyll-compose
diff --git a/repos/minimal/opts.yml b/repos/minimal/opts.yml
index 5cda6d2..db0861d 100644
--- a/repos/minimal/opts.yml
+++ b/repos/minimal/opts.yml
@@ -1,7 +1,7 @@
 gems:
   all: &gems
     - kramdown
-    - jekyll-sass-converter
+    - jekyll-sass-converter:'< 3'
     - jekyll-coffeescript
     - minima
   group: