diff --git a/Gemfile b/Gemfile
index f25327c..f9ba38b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -22,7 +22,7 @@ end
 # Windows and JRuby does not include zoneinfo files, so bundle the tzinfo-data gem
 # and associated library.
 install_if -> { RUBY_PLATFORM =~ %r!mingw|mswin|java! } do
-  gem "tzinfo", "~> 1.2.7"
+  gem "tzinfo", "~> 1.2.10"
   gem "tzinfo-data"
 end
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 4044e7d..1aa4d1d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -60,7 +60,7 @@ GEM
     terminal-table (1.8.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     thread_safe (0.3.6)
-    tzinfo (1.2.7)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     tzinfo-data (1.2020.2)
       tzinfo (>= 1.0.0)
@@ -74,7 +74,7 @@ DEPENDENCIES
   jekyll (~> 4.1.1)
   jekyll-feed (~> 0.15.1)
   jekyll-seo-tag (~> 2.6.1)
-  tzinfo (~> 1.2.7)
+  tzinfo (~> 1.2.10)
   tzinfo-data
   wdm (~> 0.1.1)