diff --git a/Gemfile b/Gemfile
index 00f1548e..4156992f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -12,7 +12,7 @@ gem "jbuilder", "~> 2.10"
 gem "sass-rails", "~> 5.0"
 gem "turbolinks", "~> 2.5.3"
 
-gem "bcrypt", "~> 3.1.7"
+gem "bcrypt", "~> 3.1.18"
 
 gem "active_model_otp"
 gem "bootstrap_form"
diff --git a/Gemfile.lock b/Gemfile.lock
index 938d1746..be9db359 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -86,7 +86,7 @@ GEM
     addressable (2.8.0)
       public_suffix (>= 2.0.2, < 5.0)
     ast (2.4.2)
-    bcrypt (3.1.16)
+    bcrypt (3.1.18)
     better_errors (2.9.1)
       coderay (>= 1.0.0)
       erubi (>= 1.0.0)
@@ -576,7 +576,7 @@ PLATFORMS
 
 DEPENDENCIES
   active_model_otp
-  bcrypt (~> 3.1.7)
+  bcrypt (~> 3.1.18)
   better_errors
   binding_of_caller
   bootstrap_form