diff --git a/.github/workflows/sinatra.yml b/.github/workflows/sinatra.yml
index e7b341e..9308960 100644
--- a/.github/workflows/sinatra.yml
+++ b/.github/workflows/sinatra.yml
@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby-version: ['2.6', '2.7', '3.0']
+        ruby-version: ['2.7', '3.0']
 
     steps:
     - uses: actions/checkout@v2
diff --git a/sinatra/Gemfile.lock b/sinatra/Gemfile.lock
index 0842f50..60066d2 100644
--- a/sinatra/Gemfile.lock
+++ b/sinatra/Gemfile.lock
@@ -1,15 +1,15 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    mini_portile2 (2.8.0)
+    mini_portile2 (2.8.4)
     minitest (5.14.4)
     mustermann (2.0.2)
       ruby2_keywords (~> 0.0.1)
-    nokogiri (1.13.10)
+    nokogiri (1.14.3)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
     nori (2.6.0)
-    racc (1.6.1)
+    racc (1.7.1)
     rack (2.2.6.4)
     rack-parser (0.7.0)
       rack