diff --git a/Gemfile b/Gemfile
index e984c28..c7e054d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -27,7 +27,7 @@ gem "tzinfo-data", platforms: %i[ windows jruby ]
 gem "solid_cache"
 gem "solid_queue"
 gem "solid_cable"
-gem "bcrypt", "~> 3.1.7"
+gem "bcrypt", "~> 3.1.21"
 
 # Reduces boot times through caching; required in config/boot.rb
 gem "bootsnap", require: false
diff --git a/Gemfile.lock b/Gemfile.lock
index 619cb9e..983bb12 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -79,7 +79,7 @@ GEM
       public_suffix (>= 2.0.2, < 7.0)
     ast (2.4.3)
     base64 (0.3.0)
-    bcrypt (3.1.20)
+    bcrypt (3.1.21)
     bcrypt_pbkdf (1.1.1)
     bcrypt_pbkdf (1.1.1-arm64-darwin)
     bcrypt_pbkdf (1.1.1-x86_64-darwin)
@@ -397,7 +397,7 @@ PLATFORMS
   x86_64-linux-musl
 
 DEPENDENCIES
-  bcrypt (~> 3.1.7)
+  bcrypt (~> 3.1.21)
   bootsnap
   brakeman
   bundler-audit