diff --git a/Gemfile.lock b/Gemfile.lock
index 36ec9c3..de22f41 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -38,7 +38,7 @@ GEM
     colorator (1.1.0)
     commonmarker (0.17.13)
       ruby-enum (~> 0.5)
-    concurrent-ruby (1.1.9)
+    concurrent-ruby (1.1.10)
     crass (1.0.6)
     em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
@@ -82,7 +82,7 @@ GEM
       rouge (~> 3.0)
       safe_yaml (~> 1.0)
       terminal-table (~> 2.0)
-    jekyll-avatar (0.7.0)
+    jekyll-avatar (0.8.0)
       jekyll (>= 3.0, < 5.0)
     jekyll-coffeescript (2.0.0)
       coffee-script (~> 2.2)
@@ -169,7 +169,7 @@ GEM
       ast (~> 2.4.1)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (4.0.6)
+    public_suffix (4.0.7)
     racc (1.6.0)
     rack (2.2.3)
     rack-test (1.1.0)