diff --git a/Gemfile.lock b/Gemfile.lock
index 96730e1378d..a6d9e7699c5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -233,7 +233,7 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    Ascii85 (1.1.1)
+    Ascii85 (2.0.1)
     actioncable (7.1.5)
       actionpack (= 7.1.5)
       activesupport (= 7.1.5)
@@ -845,8 +845,8 @@ GEM
     pdf-core (0.9.0)
     pdf-inspector (1.3.0)
       pdf-reader (>= 1.0, < 3.0.a)
-    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