diff --git a/Gemfile b/Gemfile
index eb878df9d..6e5a16016 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,4 +10,4 @@ gem "logger", "~> 1.7"
 
 gem "csv", "~> 3.3"
 
-gem "base64", "~> 0.2.0"
+gem "base64", "~> 0.3.0"
diff --git a/Gemfile.lock b/Gemfile.lock
index c8c93d250..5273311e0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -3,7 +3,7 @@ GEM
   specs:
     addressable (2.8.7)
       public_suffix (>= 2.0.2, < 7.0)
-    base64 (0.2.0)
+    base64 (0.3.0)
     bigdecimal (3.1.9)
     colorator (1.1.0)
     concurrent-ruby (1.3.5)
@@ -83,7 +83,7 @@ PLATFORMS
   x86_64-linux
 
 DEPENDENCIES
-  base64 (~> 0.2.0)
+  base64 (~> 0.3.0)
   csv (~> 3.3)
   jekyll (~> 4.4)
   logger (~> 1.7)