diff --git a/Cargo.lock b/Cargo.lock
index aa6c2ce..d63523d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -179,9 +179,9 @@ dependencies = [
 
 [[package]]
 name = "command_attr"
-version = "0.3.0-rc.1"
+version = "0.3.0-rc.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c538daab2daaf13de61cea91648a62bb11d267ef629f707d5fe3dd080043ab4d"
+checksum = "6745770e89e5e4583424362f15f91c8bb0ef54387d209af30e0446d08909ae7d"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1272,9 +1272,9 @@ dependencies = [
 
 [[package]]
 name = "serenity"
-version = "0.9.0-rc.1"
+version = "0.9.0-rc.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "21e935a7f3f4752257183ee1f3553b10ea5b514a55de0e536dca7f3742b97d18"
+checksum = "d179c8684cccfc95898c4a97ba3cb8787dd8db5e3f8cb645efd129ddb1a7dd7f"
 dependencies = [
  "async-trait",
  "async-tungstenite",
@@ -1285,12 +1285,13 @@ dependencies = [
  "command_attr",
  "flate2",
  "futures",
- "log",
  "reqwest",
  "serde",
  "serde_json",
  "static_assertions",
  "tokio",
+ "tracing",
+ "tracing-futures",
  "typemap_rev",
  "url",
  "uwl",
@@ -1522,9 +1523,21 @@ checksum = "6d79ca061b032d6ce30c660fded31189ca0b9922bf483cd70759f13a2d86786c"
 dependencies = [
  "cfg-if",
  "log",
+ "tracing-attributes",
  "tracing-core",
 ]
 
+[[package]]
+name = "tracing-attributes"
+version = "0.1.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "80e0ccfc3378da0cce270c946b676a376943f5cd16aeba64568e7939806f4ada"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "tracing-core"
 version = "0.1.16"
@@ -1534,6 +1547,16 @@ dependencies = [
  "lazy_static",
 ]
 
+[[package]]
+name = "tracing-futures"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ab7bb6f14721aa00656086e9335d363c5c8747bae02ebe32ea2c7dece5689b4c"
+dependencies = [
+ "pin-project",
+ "tracing",
+]
+
 [[package]]
 name = "try-lock"
 version = "0.2.3"
diff --git a/youmubot-cf/Cargo.toml b/youmubot-cf/Cargo.toml
index 0ace10a..8fef3a6 100644
--- a/youmubot-cf/Cargo.toml
+++ b/youmubot-cf/Cargo.toml
@@ -9,7 +9,7 @@ edition = "2018"
 serde = { version = "1", features = ["derive"] }
 tokio = { version = "0.2", features = ["time"] }
 reqwest = "0.10.1"
-serenity = "0.9.0-rc.0"
+serenity = "0.9.0-rc.2"
 Inflector = "0.11"
 codeforces = "0.2.1"
 regex = "1"
diff --git a/youmubot-core/Cargo.toml b/youmubot-core/Cargo.toml
index 4218f4e..8d6c135 100644
--- a/youmubot-core/Cargo.toml
+++ b/youmubot-core/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-serenity = { version = "0.9.0-rc.0", features = ["collector"] }
+serenity = { version = "0.9.0-rc.2", features = ["collector"] }
 rand = "0.7"
 serde = { version = "1", features = ["derive"] }
 chrono = "0.4"
diff --git a/youmubot-db/Cargo.toml b/youmubot-db/Cargo.toml
index b5b70cc..6933213 100644
--- a/youmubot-db/Cargo.toml
+++ b/youmubot-db/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-serenity = "0.9.0-rc.0"
+serenity = "0.9.0-rc.2"
 dotenv = "0.15"
 serde = { version = "1.0", features = ["derive"] }
 chrono = "0.4.9"
diff --git a/youmubot-osu/Cargo.toml b/youmubot-osu/Cargo.toml
index f3af18e..7bd69ba 100644
--- a/youmubot-osu/Cargo.toml
+++ b/youmubot-osu/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-serenity = "0.9.0-rc.0"
+serenity = "0.9.0-rc.2"
 chrono = "0.4.10"
 reqwest = "0.10.1"
 serde = { version = "1.0", features = ["derive"] }
diff --git a/youmubot-prelude/Cargo.toml b/youmubot-prelude/Cargo.toml
index fbb99ba..fa88506 100644
--- a/youmubot-prelude/Cargo.toml
+++ b/youmubot-prelude/Cargo.toml
@@ -17,6 +17,6 @@ chrono = "0.4"
 flume = "0.9"
 
 [dependencies.serenity]
-version = "0.9.0-rc.0"
+version = "0.9.0-rc.2"
 default-features = true
 features = ["collector"]
diff --git a/youmubot/Cargo.toml b/youmubot/Cargo.toml
index 3280a04..6a7bad7 100644
--- a/youmubot/Cargo.toml
+++ b/youmubot/Cargo.toml
@@ -12,7 +12,7 @@ osu = ["youmubot-osu"]
 codeforces = ["youmubot-cf"]
 
 [dependencies]
-serenity = "0.9.0-rc.0"
+serenity = "0.9.0-rc.2"
 tokio = "0.2"
 dotenv = "0.15"
 env_logger = "0.7"