diff --git a/Gemfile b/Gemfile
index 6504235..310edf7 100644
--- a/Gemfile
+++ b/Gemfile
@@ -35,7 +35,7 @@ gem "jwt", "~> 3.1"
 gem "webauthn", "~> 3.0"
 
 # Public Suffix List for domain parsing
-gem "public_suffix", "~> 6.0"
+gem "public_suffix", "~> 7.0"
 
 # Error tracking and performance monitoring (optional, configured via SENTRY_DSN)
 gem "sentry-ruby", "~> 5.18"
diff --git a/Gemfile.lock b/Gemfile.lock
index 1facf4a..72bc963 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -75,8 +75,7 @@ GEM
       securerandom (>= 0.3)
       tzinfo (~> 2.0, >= 2.0.5)
       uri (>= 0.13.1)
-    addressable (2.8.7)
-      public_suffix (>= 2.0.2, < 7.0)
+    addressable (2.4.0)
     android_key_attestation (0.3.0)
     ast (2.4.3)
     base64 (0.3.0)
@@ -103,8 +102,6 @@ GEM
       regexp_parser (>= 1.5, < 3.0)
       xpath (~> 3.2)
     cbor (0.5.10.1)
-    childprocess (5.1.0)
-      logger (~> 1.5)
     chunky_png (1.4.0)
     concurrent-ruby (1.3.5)
     connection_pool (2.5.4)
@@ -162,10 +159,8 @@ GEM
       thor (~> 1.3)
       zeitwerk (>= 2.6.18, < 3.0)
     language_server-protocol (3.17.0.5)
-    launchy (3.1.1)
-      addressable (~> 2.8)
-      childprocess (~> 5.0)
-      logger (~> 1.6)
+    launchy (2.4.3)
+      addressable (~> 2.3)
     letter_opener (1.10.0)
       launchy (>= 2.2, < 4)
     lint_roller (1.1.0)
@@ -234,7 +229,7 @@ GEM
     psych (5.2.6)
       date
       stringio
-    public_suffix (6.0.2)
+    public_suffix (7.0.0)
     puma (7.1.0)
       nio4r (~> 2.0)
     racc (1.8.1)
@@ -442,7 +437,7 @@ DEPENDENCIES
   kamal
   letter_opener
   propshaft
-  public_suffix (~> 6.0)
+  public_suffix (~> 7.0)
   puma (>= 5.0)
   rails (~> 8.1.1)
   rotp (~> 6.3)