diff --git a/Gemfile.lock b/Gemfile.lock
index fe8b52c8..d963ce71 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -86,7 +86,7 @@ GEM
       activerecord (>= 4.2)
     addressable (2.8.7)
       public_suffix (>= 2.0.2, < 7.0)
-    afm (0.2.2)
+    afm (1.0.0)
     ajax-datatables-rails (1.3.1)
       zeitwerk
     archive-zip (0.12.0)
@@ -396,9 +396,9 @@ GEM
     pdf-core (0.10.0)
     pdf-inspector (1.3.0)
       pdf-reader (>= 1.0, < 3.0.a)
-    pdf-reader (2.14.1)
+    pdf-reader (2.15.0)
       Ascii85 (>= 1.0, < 3.0, != 2.0.0)
-      afm (~> 0.2.1)
+      afm (>= 0.2.1, < 2)
       hashery (~> 2.0)
       ruby-rc4
       ttfunk