diff --git a/Cargo.toml b/Cargo.toml
index 75867ddbf4f..26e7a44aadb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -116,7 +116,7 @@ libp2p-gossipsub = { version = "0.40.0", path = "protocols/gossipsub", optional
 [dev-dependencies]
 async-std = { version = "1.6.2", features = ["attributes"] }
 async-trait = "0.1"
-env_logger = "0.9.0"
+env_logger = "0.10.0"
 clap = {version = "3.1.6", features = ["derive"]}
 tokio = { version = "1.15", features = ["io-util", "io-std", "macros", "rt", "rt-multi-thread"] }
 
diff --git a/misc/metrics/Cargo.toml b/misc/metrics/Cargo.toml
index 7ccd259e535..cd8eb3ca0e4 100644
--- a/misc/metrics/Cargo.toml
+++ b/misc/metrics/Cargo.toml
@@ -33,7 +33,7 @@ libp2p-gossipsub =  { version = "0.40.0", path = "../../protocols/gossipsub", op
 
 [dev-dependencies]
 log = "0.4.0"
-env_logger = "0.8.1"
+env_logger = "0.10.0"
 futures = "0.3.1"
 libp2p = { path = "../../", default-features = false, features = ["metrics", "ping", "tcp-async-io", "dns-async-std", "websocket", "noise", "mplex", "yamux"] }
 hyper = { version="0.14", features = ["server", "tcp", "http1"] }
diff --git a/misc/multistream-select/Cargo.toml b/misc/multistream-select/Cargo.toml
index 9ca21c0362a..e262eedc9a3 100644
--- a/misc/multistream-select/Cargo.toml
+++ b/misc/multistream-select/Cargo.toml
@@ -20,7 +20,7 @@ unsigned-varint = "0.7"
 
 [dev-dependencies]
 async-std = "1.6.2"
-env_logger = "0.9"
+env_logger = "0.10"
 libp2p-core = { path = "../../core", default-features = false }
 libp2p-swarm = { path = "../../swarm", default-features = false }
 libp2p-mplex = { path = "../../muxers/mplex" }
diff --git a/muxers/mplex/Cargo.toml b/muxers/mplex/Cargo.toml
index ac053a5020f..f7f5065fbf9 100644
--- a/muxers/mplex/Cargo.toml
+++ b/muxers/mplex/Cargo.toml
@@ -25,7 +25,7 @@ unsigned-varint = { version = "0.7", features = ["asynchronous_codec"] }
 [dev-dependencies]
 async-std = "1.7.0"
 criterion = "0.3"
-env_logger = "0.9"
+env_logger = "0.10"
 futures = "0.3"
 libp2p-tcp = { path = "../../transports/tcp" }
 libp2p-plaintext = { path = "../../transports/plaintext" }
diff --git a/protocols/autonat/Cargo.toml b/protocols/autonat/Cargo.toml
index 6ec668e4fdc..e1137dc5b40 100644
--- a/protocols/autonat/Cargo.toml
+++ b/protocols/autonat/Cargo.toml
@@ -27,7 +27,7 @@ prost = "0.11"
 
 [dev-dependencies]
 async-std = { version = "1.10", features = ["attributes"] }
-env_logger = "0.9"
+env_logger = "0.10"
 clap = {version = "3.1.6", features = ["derive"]}
 
 
diff --git a/protocols/dcutr/Cargo.toml b/protocols/dcutr/Cargo.toml
index 3193df1bbe0..149ccf64a00 100644
--- a/protocols/dcutr/Cargo.toml
+++ b/protocols/dcutr/Cargo.toml
@@ -29,7 +29,7 @@ void = "1"
 prost-build = "0.11"
 
 [dev-dependencies]
-env_logger = "0.8.3"
+env_logger = "0.10.0"
 libp2p = { path = "../..", default-features = false,  features = ["dcutr", "relay", "plaintext", "identify", "tcp-async-io", "ping", "noise", "dns-async-std"] }
 libp2p-identify = { path = "../identify" }
 libp2p-plaintext = { path = "../../transports/plaintext" }
diff --git a/protocols/gossipsub/Cargo.toml b/protocols/gossipsub/Cargo.toml
index 5c7f2a16e8f..10518bfce04 100644
--- a/protocols/gossipsub/Cargo.toml
+++ b/protocols/gossipsub/Cargo.toml
@@ -35,7 +35,7 @@ prometheus-client = "0.17.0"
 
 [dev-dependencies]
 async-std = "1.6.3"
-env_logger = "0.9.0"
+env_logger = "0.10.0"
 libp2p-plaintext = { path = "../../transports/plaintext" }
 libp2p-yamux = { path = "../../muxers/yamux" }
 libp2p-mplex = { path = "../../muxers/mplex" }
diff --git a/protocols/identify/Cargo.toml b/protocols/identify/Cargo.toml
index 9db09cd1bf2..25edc7b4ae2 100644
--- a/protocols/identify/Cargo.toml
+++ b/protocols/identify/Cargo.toml
@@ -26,7 +26,7 @@ void = "1.0"
 
 [dev-dependencies]
 async-std = { version = "1.6.2", features = ["attributes"] }
-env_logger = "0.9"
+env_logger = "0.10"
 libp2p = { path = "../..", default-features = false, features = [
     "dns-async-std",
     "mplex",
diff --git a/protocols/kad/Cargo.toml b/protocols/kad/Cargo.toml
index d1910dccbbb..cf4ee5fe4fd 100644
--- a/protocols/kad/Cargo.toml
+++ b/protocols/kad/Cargo.toml
@@ -33,7 +33,7 @@ _serde = { package = "serde", version = "1.0", optional = true, features = ["der
 thiserror = "1"
 
 [dev-dependencies]
-env_logger = "0.9.0"
+env_logger = "0.10.0"
 futures-timer = "3.0"
 libp2p-noise = { path = "../../transports/noise" }
 libp2p-yamux = { path = "../../muxers/yamux" }
diff --git a/protocols/mdns/Cargo.toml b/protocols/mdns/Cargo.toml
index bb060c9ed1f..bf23b9dfaa3 100644
--- a/protocols/mdns/Cargo.toml
+++ b/protocols/mdns/Cargo.toml
@@ -27,6 +27,6 @@ void = "1.0.2"
 
 [dev-dependencies]
 async-std = { version = "1.9.0", features = ["attributes"] }
-env_logger = "0.9.0"
+env_logger = "0.10.0"
 libp2p = { path = "../..", default-features = false, features = ["mdns", "tcp-async-io", "dns-async-std", "websocket", "noise", "mplex", "yamux"] }
 tokio = { version = "1.15", default-features = false, features = ["macros", "rt", "rt-multi-thread", "time"] }
diff --git a/protocols/relay/Cargo.toml b/protocols/relay/Cargo.toml
index 4a7396f938b..c99c9ad7195 100644
--- a/protocols/relay/Cargo.toml
+++ b/protocols/relay/Cargo.toml
@@ -33,7 +33,7 @@ void = "1"
 prost-build = "0.11"
 
 [dev-dependencies]
-env_logger = "0.9.0"
+env_logger = "0.10.0"
 libp2p = { path = "../..", default-features = false, features = ["identify", "relay", "ping", "noise", "plaintext", "tcp-async-io"] }
 libp2p-identify = { path = "../identify" }
 libp2p-kad = { path = "../kad" }
diff --git a/protocols/rendezvous/Cargo.toml b/protocols/rendezvous/Cargo.toml
index 833fee1f19d..6b27ae900eb 100644
--- a/protocols/rendezvous/Cargo.toml
+++ b/protocols/rendezvous/Cargo.toml
@@ -28,7 +28,7 @@ instant = "0.1.11"
 
 [dev-dependencies]
 async-trait = "0.1"
-env_logger = "0.8"
+env_logger = "0.10"
 libp2p = { path = "../..", default-features = false, features = ["ping", "identify", "tcp-async-io", "dns-async-std", "websocket", "noise", "mplex", "yamux", "rendezvous"] }
 rand = "0.8"
 tokio = { version = "1.15", features = [ "rt-multi-thread", "time", "macros", "sync", "process", "fs", "net" ] }
diff --git a/protocols/request-response/Cargo.toml b/protocols/request-response/Cargo.toml
index 91f95484f73..58b06a2263d 100644
--- a/protocols/request-response/Cargo.toml
+++ b/protocols/request-response/Cargo.toml
@@ -24,7 +24,7 @@ unsigned-varint = { version = "0.7", features = ["std", "futures"] }
 
 [dev-dependencies]
 async-std = "1.6.2"
-env_logger = "0.9.0"
+env_logger = "0.10.0"
 libp2p-noise = { path = "../../transports/noise" }
 libp2p-tcp = { path = "../../transports/tcp" }
 libp2p-yamux = { path = "../../muxers/yamux" }
diff --git a/swarm/Cargo.toml b/swarm/Cargo.toml
index e2829f80093..e54ea2cc52e 100644
--- a/swarm/Cargo.toml
+++ b/swarm/Cargo.toml
@@ -26,7 +26,7 @@ void = "1"
 
 [dev-dependencies]
 async-std = { version = "1.6.2", features = ["attributes"] }
-env_logger = "0.9"
+env_logger = "0.10"
 libp2p = { path = "../", default-features = false, features = ["identify", "ping", "plaintext", "yamux"] }
 libp2p-mplex = { path = "../muxers/mplex" }
 libp2p-noise = { path = "../transports/noise" }
diff --git a/transports/dns/Cargo.toml b/transports/dns/Cargo.toml
index 46ca3aca1af..c900b22de65 100644
--- a/transports/dns/Cargo.toml
+++ b/transports/dns/Cargo.toml
@@ -20,7 +20,7 @@ trust-dns-resolver = { version = "0.21", default-features = false, features = ["
 smallvec = "1.6.1"
 
 [dev-dependencies]
-env_logger = "0.9"
+env_logger = "0.10"
 tokio-crate = { package = "tokio", version = "1.0", default-features = false, features = ["rt", "time"] }
 async-std-crate = { package = "async-std", version = "1.6" }
 
diff --git a/transports/noise/Cargo.toml b/transports/noise/Cargo.toml
index 708b3eb286e..20593fa2b5e 100644
--- a/transports/noise/Cargo.toml
+++ b/transports/noise/Cargo.toml
@@ -30,7 +30,7 @@ snow = { version = "0.9.0", features = ["default-resolver"], default-features =
 
 [dev-dependencies]
 async-io = "1.2.0"
-env_logger = "0.9.0"
+env_logger = "0.10.0"
 libp2p-tcp = { path = "../../transports/tcp" }
 quickcheck = "0.9.0"
 sodiumoxide = "0.2.5"
diff --git a/transports/plaintext/Cargo.toml b/transports/plaintext/Cargo.toml
index 354782d9253..0c3f209acb5 100644
--- a/transports/plaintext/Cargo.toml
+++ b/transports/plaintext/Cargo.toml
@@ -21,7 +21,7 @@ unsigned-varint = { version = "0.7", features = ["asynchronous_codec"] }
 void = "1.0.2"
 
 [dev-dependencies]
-env_logger = "0.9.0"
+env_logger = "0.10.0"
 quickcheck = "0.9.0"
 rand = "0.7"
 
diff --git a/transports/tcp/Cargo.toml b/transports/tcp/Cargo.toml
index 7273db58c51..bbbdab1544f 100644
--- a/transports/tcp/Cargo.toml
+++ b/transports/tcp/Cargo.toml
@@ -31,4 +31,4 @@ async-io = ["async-io-crate", "if-watch"]
 [dev-dependencies]
 async-std = { version = "1.6.5", features = ["attributes"] }
 tokio-crate = { package = "tokio", version = "1.0.1", default-features = false, features = ["net", "rt"] }
-env_logger = "0.9.0"
+env_logger = "0.10.0"