diff --git a/Gemfile.lock b/Gemfile.lock
index aa1e3e2..899822a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -173,7 +173,7 @@ GEM
       rake (>= 0.8.7)
       thor (>= 0.18.1, < 2.0)
     rake (10.1.1)
-    rdoc (3.12.2)
+    rdoc (4.1.1)
       json (~> 1.4)
     ref (1.0.5)
     rest-client (1.6.7)
@@ -205,9 +205,9 @@ GEM
       nokogiri (>= 1.4.0)
       nori (~> 2.3.0)
       wasabi (~> 3.2.2)
-    sdoc (0.3.20)
-      json (>= 1.1.3)
-      rdoc (~> 3.10)
+    sdoc (0.4.0)
+      json (~> 1.8)
+      rdoc (~> 4.0, < 5.0)
     shoulda-matchers (2.4.0)
       activesupport (>= 3.0.0)
     simplecov (0.8.2)
--
libgit2 0.21.2