diff --git a/Gemfile.lock b/Gemfile.lock
index 035ad6d..4a139d8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -29,7 +29,7 @@ GEM
       bson (>= 4.14.1, < 5.0.0)
     mustermann (3.0.0)
       ruby2_keywords (~> 0.0.1)
-    nio4r (2.7.0)
+    nio4r (2.7.3)
     parallel (1.24.0)
     parser (3.2.2.4)
       ast (~> 2.4.1)
@@ -41,7 +41,7 @@ GEM
       byebug (~> 11.0)
       pry (>= 0.13, < 0.15)
     public_suffix (5.0.4)
-    puma (6.4.2)
+    puma (6.4.3)
       nio4r (~> 2.0)
     racc (1.7.3)
     rack (2.2.8.1)