diff --git a/Gemfile.lock b/Gemfile.lock
index 2b71dbd..75ddaf9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -3,8 +3,6 @@ GEM
   specs:
     kramdown (2.5.1)
       rexml (>= 3.3.9)
-    kramdown-parser-gfm (1.1.0)
-      kramdown (~> 2.0)
     phlex (1.11.0)
     phlexite (0.1.3)
     rexml (3.4.0)
@@ -15,7 +13,6 @@ PLATFORMS
 
 DEPENDENCIES
   kramdown (~> 2.5)
-  kramdown-parser-gfm (~> 1.1)
   phlex (~> 1.11)
   phlexite (~> 0.1.3)