diff --git a/Cargo.lock b/Cargo.lock
index 33d4e233..f794b7dd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -955,7 +955,7 @@ dependencies = [
  "tonic",
  "tracing",
  "tracing-core",
- "tracing-subscriber 0.3.11",
+ "tracing-subscriber 0.3.15",
 ]
 
 [[package]]
@@ -4337,7 +4337,7 @@ checksum = "ea50bcf843510179a7ba41c9fe4d83a8958e9f8adf707ec731ff999297536344"
 dependencies = [
  "sentry-core",
  "tracing-core",
- "tracing-subscriber 0.3.11",
+ "tracing-subscriber 0.3.15",
 ]
 
 [[package]]
@@ -5562,7 +5562,7 @@ checksum = "09d48f71a791638519505cefafe162606f706c25592e4bde4d97600c0195312e"
 dependencies = [
  "crossbeam-channel",
  "time 0.3.14",
- "tracing-subscriber 0.3.11",
+ "tracing-subscriber 0.3.15",
 ]
 
 [[package]]
@@ -5578,11 +5578,11 @@ dependencies = [
 
 [[package]]
 name = "tracing-core"
-version = "0.1.26"
+version = "0.1.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f54c8ca710e81886d498c2fd3331b56c93aa248d49de2222ad2742247c60072f"
+checksum = "5aeea4303076558a00714b823f9ad67d58a3bbda1df83d8827d21193156e22f7"
 dependencies = [
- "lazy_static",
+ "once_cell",
  "valuable",
 ]
 
@@ -5593,7 +5593,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d686ec1c0f384b1277f097b2f279a2ecc11afe8c133c1aabf036a27cb4cd206e"
 dependencies = [
  "tracing",
- "tracing-subscriber 0.3.11",
+ "tracing-subscriber 0.3.15",
 ]
 
 [[package]]
@@ -5604,7 +5604,7 @@ checksum = "0bae117ee14789185e129aaee5d93750abe67fdc5a9a62650452bfe4e122a3a9"
 dependencies = [
  "lazy_static",
  "tracing",
- "tracing-subscriber 0.3.11",
+ "tracing-subscriber 0.3.15",
 ]
 
 [[package]]
@@ -5625,7 +5625,7 @@ checksum = "ba316a74e8fc3c3896a850dba2375928a9fa171b085ecddfc7c054d39970f3fd"
 dependencies = [
  "libc",
  "tracing-core",
- "tracing-subscriber 0.3.11",
+ "tracing-subscriber 0.3.15",
 ]
 
 [[package]]
@@ -5658,13 +5658,13 @@ dependencies = [
 
 [[package]]
 name = "tracing-subscriber"
-version = "0.3.11"
+version = "0.3.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4bc28f93baff38037f64e6f43d34cfa1605f27a49c34e8a04c5e78b0babf2596"
+checksum = "60db860322da191b40952ad9affe65ea23e7dd6a5c442c2c42865810c6ab8e6b"
 dependencies = [
  "ansi_term 0.12.1",
- "lazy_static",
  "matchers 0.1.0",
+ "once_cell",
  "regex",
  "sharded-slab",
  "smallvec 1.8.0",
@@ -6448,7 +6448,7 @@ dependencies = [
  "tracing",
  "tracing-error",
  "tracing-futures",
- "tracing-subscriber 0.3.11",
+ "tracing-subscriber 0.3.15",
  "zcash_proofs",
  "zebra-chain",
  "zebra-script",
@@ -6605,7 +6605,7 @@ dependencies = [
  "tower",
  "tracing",
  "tracing-error",
- "tracing-subscriber 0.3.11",
+ "tracing-subscriber 0.3.15",
 ]
 
 [[package]]
@@ -6618,7 +6618,7 @@ dependencies = [
  "structopt",
  "tinyvec",
  "tracing-error",
- "tracing-subscriber 0.3.11",
+ "tracing-subscriber 0.3.15",
  "zebra-chain",
  "zebra-consensus",
  "zebra-state",
@@ -6676,7 +6676,7 @@ dependencies = [
  "tracing-flame",
  "tracing-futures",
  "tracing-journald",
- "tracing-subscriber 0.3.11",
+ "tracing-subscriber 0.3.15",
  "vergen",
  "zebra-chain",
  "zebra-consensus",
diff --git a/zebra-consensus/Cargo.toml b/zebra-consensus/Cargo.toml
index cd449a63..999e0a19 100644
--- a/zebra-consensus/Cargo.toml
+++ b/zebra-consensus/Cargo.toml
@@ -62,7 +62,7 @@ spandoc = "0.2.2"
 
 tokio = { version = "1.21.1", features = ["full", "tracing", "test-util"] }
 tracing-error = "0.2.0"
-tracing-subscriber = "0.3.11"
+tracing-subscriber = "0.3.15"
 
 zebra-chain = { path = "../zebra-chain", features = ["proptest-impl"] }
 zebra-state = { path = "../zebra-state", features = ["proptest-impl"] }
diff --git a/zebra-test/Cargo.toml b/zebra-test/Cargo.toml
index 2755bcd6..cf2db1c4 100644
--- a/zebra-test/Cargo.toml
+++ b/zebra-test/Cargo.toml
@@ -31,7 +31,7 @@ owo-colors = "3.5.0"
 spandoc = "0.2.2"
 thiserror = "1.0.35"
 
-tracing-subscriber = { version = "0.3.11", features = ["env-filter"] }
+tracing-subscriber = { version = "0.3.15", features = ["env-filter"] }
 tracing-error = "0.2.0"
 tracing = "0.1.31"
 
diff --git a/zebra-utils/Cargo.toml b/zebra-utils/Cargo.toml
index 6a886321..725b852e 100644
--- a/zebra-utils/Cargo.toml
+++ b/zebra-utils/Cargo.toml
@@ -17,7 +17,7 @@ structopt = "0.3.26"
 hex = "0.4.3"
 serde_json = "1.0.85"
 tracing-error = "0.2.0"
-tracing-subscriber = "0.3.11"
+tracing-subscriber = "0.3.15"
 
 zebra-chain = { path = "../zebra-chain" }
 zebra-consensus = { path = "../zebra-consensus" }
diff --git a/zebrad/Cargo.toml b/zebrad/Cargo.toml
index 5be5c7e8..ef2bdbfc 100644
--- a/zebrad/Cargo.toml
+++ b/zebrad/Cargo.toml
@@ -98,7 +98,7 @@ tinyvec = { version = "1.6.0", features = ["rustc_1_55"] }
 
 thiserror = "1.0.35"
 
-tracing-subscriber = { version = "0.3.11", features = ["env-filter"] }
+tracing-subscriber = { version = "0.3.15", features = ["env-filter"] }
 tracing-appender = "0.2.2"
 tracing-error = "0.2.0"
 tracing-futures = "0.2.5"
diff --git a/zebrad/src/components/tracing/component.rs b/zebrad/src/components/tracing/component.rs
index 641a810e..e95e5627 100644
--- a/zebrad/src/components/tracing/component.rs
+++ b/zebrad/src/components/tracing/component.rs
@@ -99,7 +99,8 @@ impl Tracing {
 
             let subscriber = tracing_subscriber::registry();
             // TODO: find out why crawl_and_dial and try_to_sync evade this filter,
-            //       and why they also don't get the global net/commit span
+            //       and why they also don't get the global net/commit span.
+            // Note: this might have been fixed by tracing 0.3.15, or by recent Zebra refactors.
             //
             // Using `registry` as the base subscriber, the logs from most other functions get filtered.
             // Using `FmtSubscriber` as the base subscriber, all the logs get filtered.