diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 56e245b3..3889c27c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,7 +20,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: ["3.1", "3.2", "3.3", "head"]
+        ruby: ["3.1", "3.2", "3.3", "3.4", "head"]
     steps:
       - uses: actions/checkout@v4
       - run: rm Gemfile.lock
@@ -45,7 +45,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
         with:
-          ruby-version: "3.2"
+          ruby-version: "3.4"
           bundler: latest
       - run: test/integration/user_journey_test.sh
         shell: bash
diff --git a/Gemfile.lock b/Gemfile.lock
index 7e1c0c73..abbf5f76 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -49,17 +49,17 @@ GEM
       uri (>= 0.13.1)
     base64 (0.2.0)
     benchmark (0.4.0)
-    bigdecimal (3.1.8)
+    bigdecimal (3.1.9)
     builder (3.3.0)
     concurrent-ruby (1.3.4)
-    connection_pool (2.4.1)
+    connection_pool (2.5.0)
     crass (1.0.6)
     date (3.4.1)
     debug (1.10.0)
       irb (~> 1.10)
       reline (>= 0.3.8)
     drb (2.2.1)
-    erubi (1.13.0)
+    erubi (1.13.1)
     globalid (1.2.1)
       activesupport (>= 6.1)
     i18n (1.14.6)
@@ -68,8 +68,8 @@ GEM
     irb (1.14.3)
       rdoc (>= 4.0.0)
       reline (>= 0.4.2)
-    logger (1.6.3)
-    loofah (2.23.1)
+    logger (1.6.5)
+    loofah (2.24.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
     mail (2.8.1)
@@ -78,8 +78,9 @@ GEM
       net-pop
       net-smtp
     mini_mime (1.1.5)
+    mini_portile2 (2.8.8)
     minitest (5.25.4)
-    net-imap (0.5.1)
+    net-imap (0.5.5)
       date
       net-protocol
     net-pop (0.1.2)
@@ -87,27 +88,28 @@ GEM
     net-protocol (0.2.2)
       timeout
     net-smtp (0.5.0)
-      net-protocol
-    nokogiri (1.17.2-aarch64-linux)
+    nokogiri (1.18.1)
+      mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
-    nokogiri (1.17.2-arm-linux)
+    nokogiri (1.18.1-aarch64-linux-gnu)
       racc (~> 1.4)
-    nokogiri (1.17.2-arm64-darwin)
+    nokogiri (1.18.1-arm-linux-gnu)
       racc (~> 1.4)
-    nokogiri (1.17.2-x86-linux)
+    nokogiri (1.18.1-arm64-darwin)
       racc (~> 1.4)
-    nokogiri (1.17.2-x86_64-darwin)
+    nokogiri (1.18.1-x86_64-darwin)
       racc (~> 1.4)
-    nokogiri (1.17.2-x86_64-linux)
+    nokogiri (1.18.1-x86_64-linux-gnu)
       racc (~> 1.4)
     psych (5.2.2)
       date
       stringio
     racc (1.8.1)
     rack (3.1.8)
-    rack-session (2.0.0)
+    rack-session (2.1.0)
+      base64 (>= 0.1.0)
       rack (>= 3.0.0)
-    rack-test (2.1.0)
+    rack-test (2.2.0)
       rack (>= 1.3)
     rackup (2.2.1)
       rack (>= 3)
@@ -140,7 +142,7 @@ GEM
     tailwindcss-ruby (3.4.17-x86_64-darwin)
     tailwindcss-ruby (3.4.17-x86_64-linux)
     thor (1.3.2)
-    timeout (0.4.2)
+    timeout (0.4.3)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     uri (1.0.2)