diff --git a/Gemfile b/Gemfile
index bb7380c..c02be34 100644
--- a/Gemfile
+++ b/Gemfile
@@ -36,7 +36,7 @@ gem "redcarpet", "~> 3.6"
 gem "rouge", "~> 4.0"
 
 # Document text extraction for article indexing
-gem "pdf-reader", "~> 2.12"  # PDF text extraction
+gem "pdf-reader", "~> 2.15"  # PDF text extraction
 gem "docx", "~> 0.8"         # Word document extraction
 gem "roo", "~> 3.0"          # Excel spreadsheet extraction
 gem "csv"                    # Required by roo (not default in Ruby 3.4+)
diff --git a/Gemfile.lock b/Gemfile.lock
index b990729..946647b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -262,7 +262,7 @@ GEM
     parser (3.3.10.0)
       ast (~> 2.4.1)
       racc
-    pdf-reader (2.15.0)
+    pdf-reader (2.15.1)
       Ascii85 (>= 1.0, < 3.0, != 2.0.0)
       afm (>= 0.2.1, < 2)
       hashery (~> 2.0)
@@ -513,7 +513,7 @@ DEPENDENCIES
   omniauth (~> 2.1)
   omniauth-ldap (~> 2.0)
   omniauth-rails_csrf_protection (~> 2.0)
-  pdf-reader (~> 2.12)
+  pdf-reader (~> 2.15)
   pg (~> 1.1)
   propshaft
   puma (>= 5.0)