diff --git a/Gemfile b/Gemfile
index 8fbec5405..f1cf629b2 100644
--- a/Gemfile
+++ b/Gemfile
@@ -18,7 +18,7 @@ gem "htmlentities"
 gem "kaminari"
 gem "mlanett-redis-lock"
 gem "optic14n" # Ideally version should be synced with bouncer
-gem "paper_trail", "~> 12" # We need to do migratory work to support paper_trail 13, see: https://github.com/alphagov/transition/pull/1202
+gem "paper_trail", "~> 15" # We need to do migratory work to support paper_trail 13, see: https://github.com/alphagov/transition/pull/1202
 gem "pg"
 gem "plek"
 gem "select2-rails", "~> 3.5.11" # Version 4 changes CSS classes considerably
diff --git a/Gemfile.lock b/Gemfile.lock
index 0c1cb36f1..a24e14b2d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -544,9 +544,9 @@ GEM
     optic14n (2.1.0)
       addressable (~> 2.7)
     os (1.1.4)
-    paper_trail (12.3.0)
-      activerecord (>= 5.2)
-      request_store (~> 1.1)
+    paper_trail (15.0.0)
+      activerecord (>= 6.1)
+      request_store (~> 1.4)
     parallel (1.23.0)
     parser (3.2.2.3)
       ast (~> 2.4.1)
@@ -805,7 +805,7 @@ DEPENDENCIES
   kaminari
   mlanett-redis-lock
   optic14n
-  paper_trail (~> 12)
+  paper_trail (~> 15)
   pg
   plek
   pry