diff --git a/Gemfile.lock b/Gemfile.lock
index 2534d1f..d3c70b9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -133,8 +133,8 @@ GEM
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    pry-byebug (3.4.2)
-      byebug (~> 9.0)
+    pry-byebug (3.4.3)
+      byebug (>= 9.0, < 9.1)
       pry (~> 0.10)
     public_suffix (2.0.5)
     rack (2.0.3)