diff --git a/Gemfile b/Gemfile
index 5157ddf..6227b26 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,4 +9,4 @@ gem "webrick", "~> 1.9"
 
 gem "pathutil", "~> 0.16.2"
 
-gem "json", "~> 2.17"
+gem "json", "~> 2.18"
diff --git a/Gemfile.lock b/Gemfile.lock
index eaa4466..8d77f33 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -79,7 +79,7 @@ GEM
       sass-embedded (~> 1.75)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
-    json (2.17.1)
+    json (2.18.0)
     kramdown (2.5.1)
       rexml (>= 3.3.9)
     kramdown-parser-gfm (1.1.0)
@@ -153,7 +153,7 @@ PLATFORMS
 DEPENDENCIES
   jekyll (>= 3.6.3)
   jekyll-feed
-  json (~> 2.17)
+  json (~> 2.18)
   neat (>= 1.0.0)
   pathutil (~> 0.16.2)
   webrick (~> 1.9)