diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6f33744..825cc6a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -11,7 +11,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [ jruby, 2.7, 3.0, 3.1, 3.2 ]
+        ruby: [ jruby, 3.0, 3.1, 3.2 ]
 
     steps:
     - uses: actions/checkout@v3
diff --git a/.ruby-version b/.ruby-version
index 75a22a2..818bd47 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.0.3
+3.0.6