diff --git a/Gemfile b/Gemfile
index a2ae46a..8098955 100644
--- a/Gemfile
+++ b/Gemfile
@@ -30,7 +30,7 @@ gem "solid_cable",              "~> 3.0", ">= 3.0.12"
 gem "bootsnap",                 "~> 1.18", ">= 1.18.6", require: false
 
 # Deploy this application anywhere as a Docker container [https://kamal-deploy.org]
-gem "kamal",                    "~> 2.8", ">= 2.8.2", require: false
+gem "kamal",                    "~> 2.9", require: false
 
 # Add HTTP asset caching/compression and X-Sendfile acceleration to Puma [https://github.com/basecamp/thruster/]
 gem "thruster",                 "~> 0.1.16", require: false
diff --git a/Gemfile.lock b/Gemfile.lock
index 9320608..6fbb292 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -125,7 +125,7 @@ GEM
       actionview (>= 7.0.0)
       activesupport (>= 7.0.0)
     json (2.16.0)
-    kamal (2.8.2)
+    kamal (2.9.0)
       activesupport (>= 7.0)
       base64 (~> 0.2)
       bcrypt_pbkdf (~> 1.0)
@@ -175,6 +175,8 @@ GEM
       racc (~> 1.4)
     nokogiri (1.18.10-x86_64-darwin)
       racc (~> 1.4)
+    nokogiri (1.18.10-x86_64-linux-gnu)
+      racc (~> 1.4)
     ostruct (0.6.3)
     parallel (1.27.0)
     parser (3.3.10.0)
@@ -184,6 +186,7 @@ GEM
     pg (1.6.2-aarch64-linux-musl)
     pg (1.6.2-arm64-darwin)
     pg (1.6.2-x86_64-darwin)
+    pg (1.6.2-x86_64-linux)
     pp (0.6.3)
       prettyprint
     prettyprint (0.2.0)
@@ -324,6 +327,7 @@ GEM
     thruster (0.1.16-aarch64-linux)
     thruster (0.1.16-arm64-darwin)
     thruster (0.1.16-x86_64-darwin)
+    thruster (0.1.16-x86_64-linux)
     timeout (0.4.4)
     tsort (0.2.0)
     tzinfo (2.0.6)
@@ -353,6 +357,7 @@ PLATFORMS
   arm64-darwin-24
   arm64-darwin-25
   x86_64-darwin-20
+  x86_64-linux
 
 DEPENDENCIES
   bootsnap (~> 1.18, >= 1.18.6)
@@ -362,7 +367,7 @@ DEPENDENCIES
   graphiql-rails (~> 1.10, >= 1.10.5)
   graphql (~> 2.3.22)
   jbuilder (~> 2.14, >= 2.14.1)
-  kamal (~> 2.8, >= 2.8.2)
+  kamal (~> 2.9)
   pg (~> 1.1)
   propshaft (~> 1.3, >= 1.3.1)
   puma (~> 7.1)