diff --git a/part1/src/Request/Helpers.elm b/part1/src/Request/Helpers.elm
index dcfd062..cd8efbb 100644
--- a/part1/src/Request/Helpers.elm
+++ b/part1/src/Request/Helpers.elm
@@ -3,4 +3,4 @@ module Request.Helpers exposing (apiUrl)
 
 apiUrl : String -> String
 apiUrl str =
-    "http://0.0.0.0:3000/api" ++ str
+    "http://localhost:3000/api" ++ str
diff --git a/part2/src/Request/Helpers.elm b/part2/src/Request/Helpers.elm
index dcfd062..cd8efbb 100644
--- a/part2/src/Request/Helpers.elm
+++ b/part2/src/Request/Helpers.elm
@@ -3,4 +3,4 @@ module Request.Helpers exposing (apiUrl)
 
 apiUrl : String -> String
 apiUrl str =
-    "http://0.0.0.0:3000/api" ++ str
+    "http://localhost:3000/api" ++ str
diff --git a/part3/src/Request/Helpers.elm b/part3/src/Request/Helpers.elm
index dcfd062..cd8efbb 100644
--- a/part3/src/Request/Helpers.elm
+++ b/part3/src/Request/Helpers.elm
@@ -3,4 +3,4 @@ module Request.Helpers exposing (apiUrl)
 
 apiUrl : String -> String
 apiUrl str =
-    "http://0.0.0.0:3000/api" ++ str
+    "http://localhost:3000/api" ++ str
diff --git a/part4/src/Request/Helpers.elm b/part4/src/Request/Helpers.elm
index dcfd062..cd8efbb 100644
--- a/part4/src/Request/Helpers.elm
+++ b/part4/src/Request/Helpers.elm
@@ -3,4 +3,4 @@ module Request.Helpers exposing (apiUrl)
 
 apiUrl : String -> String
 apiUrl str =
-    "http://0.0.0.0:3000/api" ++ str
+    "http://localhost:3000/api" ++ str