diff --git a/Gemfile.lock b/Gemfile.lock
index 5d6f497..1846efe 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -78,8 +78,7 @@ GEM
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     regexp_parser (2.6.0)
-    rexml (3.2.8)
-      strscan (>= 3.0.9)
+    rexml (3.3.9)
     rspec (3.11.0)
       rspec-core (~> 3.11.0)
       rspec-expectations (~> 3.11.0)
@@ -119,8 +118,6 @@ GEM
     sparkr (0.4.1)
     spoon (0.0.6)
       ffi
-    strscan (3.1.0)
-    strscan (3.1.0-java)
     sync (0.5.0)
     term-ansicolor (1.7.1)
       tins (~> 1.0)