diff --git a/polkadot/Cargo.lock b/polkadot/Cargo.lock
index e625cb66f2..c10d927546 100644
--- a/polkadot/Cargo.lock
+++ b/polkadot/Cargo.lock
@@ -5817,7 +5817,7 @@ name = "polkadot-approval-distribution"
 version = "0.9.9"
 dependencies = [
  "assert_matches",
- "env_logger 0.8.4",
+ "env_logger 0.9.0",
  "futures 0.3.16",
  "log",
  "polkadot-node-network-protocol",
@@ -5838,7 +5838,7 @@ version = "0.9.9"
 dependencies = [
  "assert_matches",
  "bitvec 0.20.1",
- "env_logger 0.8.4",
+ "env_logger 0.9.0",
  "futures 0.3.16",
  "log",
  "maplit",
@@ -5888,7 +5888,7 @@ name = "polkadot-availability-recovery"
 version = "0.9.9"
 dependencies = [
  "assert_matches",
- "env_logger 0.8.4",
+ "env_logger 0.9.0",
  "futures 0.3.16",
  "futures-timer 3.0.2",
  "log",
@@ -5971,7 +5971,7 @@ dependencies = [
  "always-assert",
  "assert_matches",
  "derive_more",
- "env_logger 0.8.4",
+ "env_logger 0.9.0",
  "futures 0.3.16",
  "futures-timer 3.0.2",
  "log",
@@ -6157,7 +6157,7 @@ version = "0.9.9"
 dependencies = [
  "assert_matches",
  "bitvec 0.20.1",
- "env_logger 0.8.4",
+ "env_logger 0.9.0",
  "futures 0.3.16",
  "futures-timer 3.0.2",
  "kvdb",
@@ -6550,7 +6550,7 @@ dependencies = [
  "assert_matches",
  "async-trait",
  "derive_more",
- "env_logger 0.8.4",
+ "env_logger 0.9.0",
  "futures 0.3.16",
  "futures-timer 3.0.2",
  "itertools 0.10.0",
@@ -10312,7 +10312,7 @@ checksum = "dba1a27d3efae4351c8051072d619e3ade2820635c3958d826bfea39d59b54c8"
 name = "staking-miner"
 version = "0.9.9"
 dependencies = [
- "env_logger 0.8.4",
+ "env_logger 0.9.0",
  "frame-election-provider-support",
  "frame-support",
  "frame-system",
diff --git a/polkadot/node/core/av-store/Cargo.toml b/polkadot/node/core/av-store/Cargo.toml
index 698939790c..f8f3372b50 100644
--- a/polkadot/node/core/av-store/Cargo.toml
+++ b/polkadot/node/core/av-store/Cargo.toml
@@ -22,7 +22,7 @@ polkadot-node-primitives = { path = "../../primitives" }
 
 [dev-dependencies]
 log = "0.4.13"
-env_logger = "0.8.4"
+env_logger = "0.9.0"
 assert_matches = "1.4.0"
 kvdb-memorydb = "0.10.0"
 
diff --git a/polkadot/node/network/approval-distribution/Cargo.toml b/polkadot/node/network/approval-distribution/Cargo.toml
index 1733d1ae6c..6e3fda1032 100644
--- a/polkadot/node/network/approval-distribution/Cargo.toml
+++ b/polkadot/node/network/approval-distribution/Cargo.toml
@@ -23,5 +23,5 @@ polkadot-node-subsystem-test-helpers = { path = "../../subsystem-test-helpers" }
 assert_matches = "1.4.0"
 schnorrkel = { version = "0.9.1", default-features = false }
 rand_core = "0.5.1" # should match schnorrkel
-env_logger = "0.8.4"
+env_logger = "0.9.0"
 log = "0.4.13"
diff --git a/polkadot/node/network/availability-recovery/Cargo.toml b/polkadot/node/network/availability-recovery/Cargo.toml
index 116a80d3cc..2d3c68753d 100644
--- a/polkadot/node/network/availability-recovery/Cargo.toml
+++ b/polkadot/node/network/availability-recovery/Cargo.toml
@@ -21,7 +21,7 @@ parity-scale-codec = { version = "2.0.0", default-features = false, features = [
 
 [dev-dependencies]
 assert_matches = "1.4.0"
-env_logger = "0.8.4"
+env_logger = "0.9.0"
 futures-timer = "3.0.2"
 log = "0.4.11"
 
diff --git a/polkadot/node/network/bitfield-distribution/Cargo.toml b/polkadot/node/network/bitfield-distribution/Cargo.toml
index bfbf93fe01..7b65ee1665 100644
--- a/polkadot/node/network/bitfield-distribution/Cargo.toml
+++ b/polkadot/node/network/bitfield-distribution/Cargo.toml
@@ -20,5 +20,5 @@ sp-application-crypto = { git = "https://github.com/paritytech/substrate", branc
 sp-keystore = { git = "https://github.com/paritytech/substrate", branch = "master" }
 maplit = "1.0.2"
 log = "0.4.13"
-env_logger = "0.8.4"
+env_logger = "0.9.0"
 assert_matches = "1.4.0"
diff --git a/polkadot/node/network/collator-protocol/Cargo.toml b/polkadot/node/network/collator-protocol/Cargo.toml
index e7fc3e0257..0dd48c0ce5 100644
--- a/polkadot/node/network/collator-protocol/Cargo.toml
+++ b/polkadot/node/network/collator-protocol/Cargo.toml
@@ -24,7 +24,7 @@ polkadot-subsystem = { package = "polkadot-node-subsystem", path = "../../subsys
 
 [dev-dependencies]
 log = "0.4.13"
-env_logger = "0.8.4"
+env_logger = "0.9.0"
 assert_matches = "1.4.0"
 
 sp-core = { git = "https://github.com/paritytech/substrate", branch = "master", features = ["std"] }
diff --git a/polkadot/node/subsystem-util/Cargo.toml b/polkadot/node/subsystem-util/Cargo.toml
index bc5f35e2e8..bac5a9fcfe 100644
--- a/polkadot/node/subsystem-util/Cargo.toml
+++ b/polkadot/node/subsystem-util/Cargo.toml
@@ -37,7 +37,7 @@ substrate-prometheus-endpoint = { git = "https://github.com/paritytech/substrate
 [dev-dependencies]
 assert_matches = "1.4.0"
 async-trait = "0.1.42"
-env_logger = "0.8.4"
+env_logger = "0.9.0"
 futures = { version = "0.3.15", features = ["thread-pool"] }
 log = "0.4.13"
 parking_lot = "0.11.1"
diff --git a/polkadot/utils/staking-miner/Cargo.toml b/polkadot/utils/staking-miner/Cargo.toml
index 1d5ebb3283..64f960af6a 100644
--- a/polkadot/utils/staking-miner/Cargo.toml
+++ b/polkadot/utils/staking-miner/Cargo.toml
@@ -8,7 +8,7 @@ edition = "2018"
 codec = { package = "parity-scale-codec", version = "2.0.0" }
 tokio = { version = "0.2", features = ["macros"] }
 log = "0.4.11"
-env_logger = "0.8.3"
+env_logger = "0.9.0"
 structopt = "0.3.0"
 jsonrpsee-ws-client = { version = "0.3.0", default-features = false, features = ["tokio02"] }
 serde_json = "1.0"