diff --git a/Gemfile b/Gemfile
index 01a3917..8132804 100644
--- a/Gemfile
+++ b/Gemfile
@@ -13,7 +13,7 @@ gem 'puma', '~> 6.4'
 # Admin interface
 gem 'administrate', '~> 0.15'
 # JSON Web Tokens
-gem 'jwt', '~> 2.2'
+gem 'jwt', '~> 2.8'
 # HTTP/REST API client library.
 gem 'faraday_middleware', '~> 1.0'
 # Cache HTTP responses
diff --git a/Gemfile.lock b/Gemfile.lock
index 6aa7493..4974420 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -75,6 +75,7 @@ GEM
     ast (2.4.2)
     attr_encrypted (3.1.0)
       encryptor (~> 3.0.0)
+    base64 (0.2.0)
     bindex (0.8.1)
     brakeman (5.2.1)
     builder (3.2.4)
@@ -137,7 +138,8 @@ GEM
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    jwt (2.3.0)
+    jwt (2.8.1)
+      base64
     kaminari (1.2.2)
       activesupport (>= 4.1.0)
       kaminari-actionview (= 1.2.2)
@@ -305,7 +307,7 @@ DEPENDENCIES
   faraday-http-cache (~> 2.0)
   faraday_middleware (~> 1.0)
   ffaker
-  jwt (~> 2.2)
+  jwt (~> 2.8)
   pg (>= 0.18, < 2.0)
   puma (~> 6.4)
   rails (~> 6.1, >= 6.1.3.1)