diff --git a/lib/nexmo_developer/Gemfile.lock b/lib/nexmo_developer/Gemfile.lock
index 0bf351d9a..423cae6c7 100644
--- a/lib/nexmo_developer/Gemfile.lock
+++ b/lib/nexmo_developer/Gemfile.lock
@@ -335,8 +335,8 @@ GEM
       nokogiri (~> 1.10)
       redcarpet (~> 3.4)
       rouge (~> 2.0.7)
-    nio4r (2.5.7)
-    nio4r (2.5.7-java)
+    nio4r (2.5.9)
+    nio4r (2.5.9-java)
     nokogiri (1.13.4)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
@@ -374,9 +374,9 @@ GEM
       method_source (~> 1.0)
       spoon (~> 0.0)
     public_suffix (4.0.6)
-    puma (5.3.2)
+    puma (6.3.1)
       nio4r (~> 2.0)
-    puma (5.3.2-java)
+    puma (6.3.1-java)
       nio4r (~> 2.0)
     racc (1.6.0)
     racc (1.6.0-java)