diff --git a/.ruby-version b/.ruby-version
index b1b25a5..5859406 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-2.2.2
+2.2.3
diff --git a/Gemfile.lock b/Gemfile.lock
index 721c7da..ebd7e71 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -26,8 +26,6 @@ GEM
     bourbon (4.2.5)
       sass (~> 3.4)
       thor (~> 0.19)
-    celluloid (0.16.0)
-      timers (~> 4.0.0)
     coffee-script (2.4.1)
       coffee-script-source
       execjs
@@ -39,7 +37,6 @@ GEM
     execjs (2.6.0)
     fast-stemmer (1.0.2)
     ffi (1.9.10)
-    hitimes (1.2.3)
     html-proofer (2.5.1)
       addressable (~> 2.3)
       colored (~> 1.2)
@@ -69,12 +66,11 @@ GEM
     jekyll-paginate (1.1.0)
     jekyll-sass-converter (1.3.0)
       sass (~> 3.2)
-    jekyll-watch (1.2.1)
-      listen (~> 2.7)
+    jekyll-watch (1.3.0)
+      listen (~> 3.0)
     kramdown (1.8.0)
     liquid (2.6.3)
-    listen (2.10.1)
-      celluloid (~> 0.16.0)
+    listen (3.0.3)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9)
     mercenary (0.3.5)
@@ -112,8 +108,6 @@ GEM
     safe_yaml (1.0.4)
     sass (3.4.18)
     thor (0.19.1)
-    timers (4.0.4)
-      hitimes
     titlecase (0.1.1)
     toml (0.1.2)
       parslet (~> 1.5.0)