diff --git a/Gemfile.lock b/Gemfile.lock
index fbff239..b5ea0d2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -4,7 +4,7 @@ GEM
     addressable (2.5.2)
       public_suffix (>= 2.0.2, < 4.0)
     colorator (1.1.0)
-    ffi (1.9.18)
+    ffi (1.11.2)
     forwardable-extended (2.6.0)
     jekyll (3.6.2)
       addressable (~> 2.4)
@@ -17,8 +17,6 @@ GEM
       pathutil (~> 0.9)
       rouge (>= 1.7, < 3)
       safe_yaml (~> 1.0)
-    jekyll-archives (2.2.1)
-      jekyll (>= 3.6, < 5.0)
     jekyll-feed (0.9.2)
       jekyll (~> 3.3)
     jekyll-paginate (1.1.0)
@@ -53,7 +51,6 @@ PLATFORMS
 
 DEPENDENCIES
   jekyll (~> 3.6.2)
-  jekyll-archives (~> 2.2.1)
   jekyll-feed (~> 0.6)
   jekyll-paginate (~> 1.1.0)
   jekyll-theme-clean-blog