diff --git a/Gemfile.lock b/Gemfile.lock
index accb8bb..5ee7f2e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -54,8 +54,7 @@ GEM
     os (1.1.4)
     racc (1.8.1)
     rake (13.0.6)
-    rexml (3.3.4)
-      strscan
+    rexml (3.3.9)
     ronn-ng (0.10.1)
       kramdown (~> 2, >= 2.1)
       kramdown-parser-gfm (~> 1, >= 1.0.1)
@@ -74,7 +73,6 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.12.0)
     rspec-support (3.12.2)
-    strscan (3.1.0)
     sys-uname (1.3.0)
       ffi (~> 1.1)
     thor (1.3.1)