diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6553e3a..90f4e35 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -11,7 +11,7 @@ jobs:
       - name: Setup Ruby and install gems
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.3.3
+          ruby-version: 3.3.4
           bundler-cache: true
       - name: Run rubocop
         run: |
@@ -53,7 +53,7 @@ jobs:
       - name: Setup Ruby and install gems
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.3.3
+          ruby-version: 3.3.4
           bundler-cache: true
       - name: Setup test database
         env:
diff --git a/.ruby-version b/.ruby-version
index 619b537..a0891f5 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.3.3
+3.3.4
diff --git a/Gemfile.lock b/Gemfile.lock
index a214766..819b319 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -141,6 +141,7 @@ GEM
       date
       net-protocol
     net-pop (0.1.2)
+      net-protocol
     net-protocol (0.2.2)
       timeout
     net-smtp (0.4.0)
@@ -275,4 +276,4 @@ DEPENDENCIES
   sqlite3
 
 BUNDLED WITH
-   2.2.33
+   2.5.23