diff --git a/Gemfile b/Gemfile
index c23154e5..9ad71f12 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,5 +4,4 @@ source "https://rubygems.org"
 # gem "rails"
 gem 'jekyll', '>=1.4.0'
 gem 'mini_magick', '>=3.6.0'
-gem 'fileutils', '>=0.7'
-gem 'gsl', '>=1.15.3'
\ No newline at end of file
+gem 'fileutils', '>=0.7'
\ No newline at end of file
diff --git a/Gemfile.lock b/Gemfile.lock
index 92b81722..87797522 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,54 +2,51 @@ GEM
   remote: https://rubygems.org/
   specs:
     blankslate (2.1.2.4)
-    classifier (1.3.3)
+    classifier (1.3.4)
       fast-stemmer (>= 1.0.0)
     colorator (0.1)
-    commander (4.1.5)
+    commander (4.1.6)
       highline (~> 1.6.11)
     fast-stemmer (1.0.2)
     ffi (1.9.3)
     fileutils (0.7)
       rmagick (>= 2.13.1)
-    gsl (1.15.3)
-      narray (>= 0.5.9)
-    highline (1.6.20)
-    jekyll (1.4.2)
+    highline (1.6.21)
+    jekyll (1.4.3)
       classifier (~> 1.3)
       colorator (~> 0.1)
       commander (~> 4.1.3)
-      liquid (~> 2.5.2)
+      liquid (~> 2.5.5)
       listen (~> 1.3)
       maruku (~> 0.7.0)
       pygments.rb (~> 0.5.0)
       redcarpet (~> 2.3.0)
       safe_yaml (~> 0.9.7)
       toml (~> 0.1.0)
-    liquid (2.5.4)
+    liquid (2.5.5)
     listen (1.3.1)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9)
       rb-kqueue (>= 0.2)
-    maruku (0.7.0)
+    maruku (0.7.1)
     mini_magick (3.7.0)
       subexec (~> 0.2.1)
-    narray (0.6.0.8)
     parslet (1.5.0)
       blankslate (~> 2.0)
     posix-spawn (0.3.8)
     pygments.rb (0.5.4)
       posix-spawn (~> 0.3.6)
       yajl-ruby (~> 1.1.0)
-    rb-fsevent (0.9.3)
+    rb-fsevent (0.9.4)
     rb-inotify (0.9.3)
       ffi (>= 0.5.0)
-    rb-kqueue (0.2.0)
+    rb-kqueue (0.2.2)
       ffi (>= 0.5.0)
     redcarpet (2.3.0)
     rmagick (2.13.2)
     safe_yaml (0.9.7)
     subexec (0.2.3)
-    toml (0.1.0)
+    toml (0.1.1)
       parslet (~> 1.5.0)
     yajl-ruby (1.1.0)
 
@@ -58,6 +55,5 @@ PLATFORMS
 
 DEPENDENCIES
   fileutils (>= 0.7)
-  gsl (>= 1.15.3)
   jekyll (>= 1.4.0)
   mini_magick (>= 3.6.0)