diff --git a/Cargo.lock b/Cargo.lock
index 6873e806..dbdc5795 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1394,7 +1394,6 @@ dependencies = [
  "async-stream",
  "env_logger 0.9.0",
  "log",
- "tokio 1.16.1",
 ]
 
 [[package]]
@@ -2374,10 +2373,10 @@ dependencies = [
 name = "error_handling"
 version = "1.0.0"
 dependencies = [
- "actix-web 3.3.3",
+ "actix-web 4.0.0-rc.1",
  "derive_more",
- "env_logger 0.8.4",
- "rand 0.7.3",
+ "env_logger 0.9.0",
+ "rand 0.8.4",
 ]
 
 [[package]]
diff --git a/basics/basics/Cargo.toml b/basics/basics/Cargo.toml
index 130243f6..47a9940a 100644
--- a/basics/basics/Cargo.toml
+++ b/basics/basics/Cargo.toml
@@ -11,4 +11,3 @@ actix-session = "0.5.0-beta.7"
 async-stream = "0.3"
 env_logger = "0.9"
 log = "0.4"
-tokio = "1"