diff --git a/backend/Gemfile.lock b/backend/Gemfile.lock
index 8780db3d..7a1bb292 100644
--- a/backend/Gemfile.lock
+++ b/backend/Gemfile.lock
@@ -76,7 +76,6 @@ GEM
       rack-test (>= 0.6.3)
       regexp_parser (>= 1.5, < 3.0)
       xpath (~> 3.2)
-    childprocess (4.1.0)
     concurrent-ruby (1.1.10)
     crass (1.0.6)
     erubi (1.10.0)
@@ -156,10 +155,10 @@ GEM
       actionpack (>= 4.2, < 6.2)
       regexp-examples (>= 1.5, < 2)
     rubyzip (2.3.2)
-    selenium-webdriver (4.1.0)
-      childprocess (>= 0.5, < 5.0)
+    selenium-webdriver (4.7.1)
       rexml (~> 3.2, >= 3.2.5)
-      rubyzip (>= 1.2.2)
+      rubyzip (>= 1.2.2, < 3.0)
+      websocket (~> 1.0)
     spring (2.1.1)
     spring-watcher-listen (2.0.1)
       listen (>= 2.7, < 4.0)
@@ -182,6 +181,7 @@ GEM
       activemodel (>= 6.0.0)
       bindex (>= 0.4.0)
       railties (>= 6.0.0)
+    websocket (1.2.9)
     websocket-driver (0.7.5)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)