diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 1159d79c..5de157cd 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -2833,6 +2833,8 @@ Ruby:
   - Appraisals
   - Berksfile
   - Buildfile
+  - Deliverfile
+  - Fastfile
   - Gemfile
   - Gemfile.lock
   - Guardfile
@@ -2840,6 +2842,7 @@ Ruby:
   - Mavenfile
   - Podfile
   - Puppetfile
+  - Snapfile
   - Thorfile
   - Vagrantfile
   - buildfile