diff --git a/Gemfile b/Gemfile
index f9a6859..3792220 100644
--- a/Gemfile
+++ b/Gemfile
@@ -110,7 +110,7 @@ gem "faraday", "~> 2.13"
 
 gem "ruby-vips", "~> 2.2"
 
-gem "slack-ruby-client", "~> 2.6"
+gem "slack-ruby-client", "~> 3.0"
 
 gem "redcarpet", "~> 3.6"
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 48f4762..fdff542 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -174,9 +174,9 @@ GEM
     faraday-mashify (1.0.0)
       faraday (~> 2.0)
       hashie
-    faraday-multipart (1.1.0)
+    faraday-multipart (1.1.1)
       multipart-post (~> 2.0)
-    faraday-net_http (3.4.0)
+    faraday-net_http (3.4.1)
       net-http (>= 0.5.0)
     ffi (1.17.2-aarch64-linux-gnu)
     ffi (1.17.2-aarch64-linux-musl)
@@ -245,7 +245,7 @@ GEM
       reline (>= 0.4.2)
     jb (0.8.2)
     jmespath (1.6.2)
-    json (2.12.0)
+    json (2.15.0)
     kaminari (1.2.2)
       activesupport (>= 4.1.0)
       kaminari-actionview (= 1.2.2)
@@ -325,7 +325,7 @@ GEM
       racc (~> 1.4)
     nokogiri (1.18.8-x86_64-linux-musl)
       racc (~> 1.4)
-    ostruct (0.6.1)
+    ostruct (0.6.3)
     paper_trail (16.0.0)
       activerecord (>= 6.1)
       request_store (~> 1.4)
@@ -464,8 +464,8 @@ GEM
       concurrent-ruby (~> 1.0)
     serve_byte_range (1.0.0)
       rack (>= 1.0)
-    slack-ruby-client (2.6.0)
-      faraday (>= 2.0)
+    slack-ruby-client (3.0.0)
+      faraday (>= 2.0.1)
       faraday-mashify
       faraday-multipart
       gli
@@ -577,7 +577,7 @@ DEPENDENCIES
   redcarpet (~> 3.6)
   rubocop-rails-omakase
   ruby-vips (~> 2.2)
-  slack-ruby-client (~> 2.6)
+  slack-ruby-client (~> 3.0)
   superform (~> 0.5.1)
   thruster
   tzinfo-data