diff --git a/Gemfile.lock b/Gemfile.lock
index 64fa391d..0c0a107e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -8,7 +8,7 @@ GIT
 GEM
   remote: https://rubygems.org/
   specs:
-    Ascii85 (1.1.1)
+    Ascii85 (2.0.1)
     activesupport (7.0.8.6)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 1.6, < 2)
@@ -175,8 +175,8 @@ GEM
     padrino-support (0.15.3)
     parallel (1.26.3)
     parslet (2.0.0)
-    pdf-reader (2.12.0)
-      Ascii85 (~> 1.0)
+    pdf-reader (2.13.0)
+      Ascii85 (>= 1.0, < 3.0, != 2.0.0)
       afm (~> 0.2.1)
       hashery (~> 2.0)
       ruby-rc4