diff --git a/Gemfile.lock b/Gemfile.lock
index 0fc15a2..9cdece3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -75,7 +75,7 @@ GEM
       securerandom (>= 0.3)
       tzinfo (~> 2.0, >= 2.0.5)
       uri (>= 0.13.1)
-    addressable (2.8.9)
+    addressable (2.9.0)
       public_suffix (>= 2.0.2, < 8.0)
     ast (2.4.3)
     backport (1.2.0)
@@ -218,7 +218,7 @@ GEM
       nio4r (~> 2.0)
     racc (1.8.1)
     rack (3.2.6)
-    rack-session (2.1.1)
+    rack-session (2.1.2)
       base64 (>= 0.1.0)
       rack (>= 3.0.0)
     rack-test (2.2.0)
@@ -360,7 +360,7 @@ GEM
     websocket-extensions (0.1.5)
     xpath (3.2.0)
       nokogiri (~> 1.8)
-    yard (0.9.38)
+    yard (0.9.43)
     yard-activesupport-concern (0.0.1)
       yard (>= 0.8)
     yard-solargraph (0.1.0)