diff --git a/Gemfile b/Gemfile
index 8afafb3..b060714 100644
--- a/Gemfile
+++ b/Gemfile
@@ -74,9 +74,10 @@ end
 
 # https://github.com/mluukkai/WebPalvelinohjelmointi2023/blob/main/web/viikko1.md#sovellus-internettiin 
 group :development, :test do
-  gem 'sqlite3'
+  gem "sqlite3"
+  gem "pry-byebug"
 end
 
 group :production do
-   gem 'pg'
+   gem "pg"
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 844dc89..e1b3208 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -72,6 +72,7 @@ GEM
     bootsnap (1.16.0)
       msgpack (~> 1.2)
     builder (3.2.4)
+    byebug (11.1.3)
     capybara (3.39.1)
       addressable
       matrix
@@ -81,6 +82,7 @@ GEM
       rack-test (>= 0.6.3)
       regexp_parser (>= 1.5, < 3.0)
       xpath (~> 3.2)
+    coderay (1.1.3)
     concurrent-ruby (1.2.2)
     crass (1.0.6)
     date (3.3.3)
@@ -128,6 +130,12 @@ GEM
     nokogiri (1.15.2-x86_64-linux)
       racc (~> 1.4)
     pg (1.5.3)
+    pry (0.14.2)
+      coderay (~> 1.1)
+      method_source (~> 1.0)
+    pry-byebug (3.10.1)
+      byebug (~> 11.0)
+      pry (>= 0.13, < 0.15)
     public_suffix (5.0.1)
     puma (5.6.5)
       nio4r (~> 2.0)
@@ -217,6 +225,7 @@ DEPENDENCIES
   importmap-rails
   jbuilder
   pg
+  pry-byebug
   puma (~> 5.0)
   rails (~> 7.0.4)
   selenium-webdriver