diff --git a/Gemfile b/Gemfile
index 9ac19e4..d71fcbd 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,7 +4,7 @@ source "https://rubygems.org"
 
 gem "hyrax", "5.1.0-beta1"
 gem 'bootsnap', '>= 1.1.0', require: false
-gem 'bootstrap', '~> 4.0'
+gem 'bootstrap', '~> 5.3'
 gem 'coffee-rails', '~> 4.2'
 gem 'dalli'
 gem 'devise'
diff --git a/Gemfile.lock b/Gemfile.lock
index 7687b6d..93600f3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -160,9 +160,9 @@ GEM
       rails (>= 6.1, < 9)
     bootsnap (1.18.4)
       msgpack (~> 1.2)
-    bootstrap (4.6.2.1)
+    bootstrap (5.3.3)
       autoprefixer-rails (>= 9.1.0)
-      popper_js (>= 1.16.1, < 2)
+      popper_js (>= 2.11.8, < 3)
     breadcrumbs_on_rails (3.0.1)
     browse-everything (1.5.0)
       addressable (~> 2.5)
@@ -698,7 +698,7 @@ GEM
     ostruct (0.6.1)
     parslet (2.0.0)
     pg (1.5.9)
-    popper_js (1.16.1)
+    popper_js (2.11.8)
     pp (0.6.2)
       prettyprint
     prettyprint (0.2.0)
@@ -1058,7 +1058,7 @@ DEPENDENCIES
   better_errors
   binding_of_caller
   bootsnap (>= 1.1.0)
-  bootstrap (~> 4.0)
+  bootstrap (~> 5.3)
   coffee-rails (~> 4.2)
   dalli
   debug (>= 1.0.0)