diff --git a/Gemfile.lock b/Gemfile.lock
index 8fc0de8..bfa5705 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -75,9 +75,9 @@ GEM
     execjs (2.7.0)
     factory_bot (4.8.2)
       activesupport (>= 3.0.0)
-    ffi (1.9.18)
-    ffi (1.9.18-x64-mingw32)
-    ffi (1.9.18-x86-mingw32)
+    ffi (1.15.3)
+    ffi (1.15.3-x64-mingw32)
+    ffi (1.15.3-x86-mingw32)
     globalid (0.4.1)
       activesupport (>= 4.2.0)
     i18n (0.9.1)