diff --git a/Cargo.lock b/Cargo.lock
index f0d70793..836e8828 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4554,18 +4554,18 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "1.0.30"
+version = "1.0.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "854babe52e4df1653706b98fcfc05843010039b406875930a70e4d9644e5c417"
+checksum = "bd829fe32373d27f76265620b5309d0340cb8550f523c1dda251d6298069069a"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.30"
+version = "1.0.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa32fd3f627f367fe16f893e2597ae3c05020f8bba2666a4e6ea73d377e5714b"
+checksum = "0396bc89e626244658bef819e22d0cc459e795a5ebe878e6ec336d1674a8d79a"
 dependencies = [
  "proc-macro2 1.0.36",
  "quote 1.0.15",
diff --git a/zebra-chain/Cargo.toml b/zebra-chain/Cargo.toml
index 7f19edb1..4f08eb45 100644
--- a/zebra-chain/Cargo.toml
+++ b/zebra-chain/Cargo.toml
@@ -45,7 +45,7 @@ secp256k1 = { version = "0.21.3", features = ["serde"] }
 sha2 = { version = "0.9.9", features=["compress"] }
 static_assertions = "1.1.0"
 subtle = "2.4.1"
-thiserror = "1.0.30"
+thiserror = "1.0.31"
 uint = "0.9.1"
 x25519-dalek = { version = "1.2.0", features = ["serde"] }
 
diff --git a/zebra-consensus/Cargo.toml b/zebra-consensus/Cargo.toml
index f3336508..1180c9c0 100644
--- a/zebra-consensus/Cargo.toml
+++ b/zebra-consensus/Cargo.toml
@@ -28,7 +28,7 @@ serde = { version = "1.0.137", features = ["serde_derive"] }
 futures = "0.3.21"
 futures-util = "0.3.21"
 metrics = "0.17.1"
-thiserror = "1.0.30"
+thiserror = "1.0.31"
 tokio = { version = "1.18.1", features = ["time", "sync", "tracing"] }
 tower = { version = "0.4.12", features = ["timeout", "util", "buffer"] }
 tracing = "0.1.31"
diff --git a/zebra-network/Cargo.toml b/zebra-network/Cargo.toml
index ef0efce7..bccec7e1 100644
--- a/zebra-network/Cargo.toml
+++ b/zebra-network/Cargo.toml
@@ -24,7 +24,7 @@ pin-project = "1.0.10"
 rand = { version = "0.8.5", package = "rand" }
 regex = "1.5.5"
 serde = { version = "1.0.137", features = ["serde_derive"] }
-thiserror = "1.0.30"
+thiserror = "1.0.31"
 
 futures = "0.3.21"
 tokio = { version = "1.18.1", features = ["net", "time", "tracing", "macros", "rt-multi-thread"] }
diff --git a/zebra-rpc/Cargo.toml b/zebra-rpc/Cargo.toml
index 1634c5d1..108727fc 100644
--- a/zebra-rpc/Cargo.toml
+++ b/zebra-rpc/Cargo.toml
@@ -46,7 +46,7 @@ proptest-derive = { version = "0.3.0", optional = true }
 proptest = "0.10.1"
 proptest-derive = "0.3.0"
 serde_json = "1.0.81"
-thiserror = "1.0.30"
+thiserror = "1.0.31"
 tokio = { version = "1.18.1", features = ["full", "test-util"] }
 
 zebra-chain = { path = "../zebra-chain", features = ["proptest-impl"] }
diff --git a/zebra-script/Cargo.toml b/zebra-script/Cargo.toml
index ccddccb3..4e219ab6 100644
--- a/zebra-script/Cargo.toml
+++ b/zebra-script/Cargo.toml
@@ -12,7 +12,7 @@ zcash_script = { git = "https://github.com/ZcashFoundation/zcash_script.git", re
 
 zebra-chain = { path = "../zebra-chain" }
 
-thiserror = "1.0.30"
+thiserror = "1.0.31"
 displaydoc = "0.2.3"
 
 [dev-dependencies]
diff --git a/zebra-state/Cargo.toml b/zebra-state/Cargo.toml
index 76b39ff7..8f4b2332 100644
--- a/zebra-state/Cargo.toml
+++ b/zebra-state/Cargo.toml
@@ -26,7 +26,7 @@ rlimit = "0.8.3"
 rocksdb = { version = "0.18.0", default_features = false, features = ["lz4"] }
 serde = { version = "1.0.137", features = ["serde_derive"] }
 tempfile = "3.3.0"
-thiserror = "1.0.30"
+thiserror = "1.0.31"
 tokio = { version = "1.18.1", features = ["sync"] }
 tower = { version = "0.4.12", features = ["buffer", "util"] }
 tracing = "0.1.31"
diff --git a/zebra-test/Cargo.toml b/zebra-test/Cargo.toml
index 6954b363..6ee89125 100644
--- a/zebra-test/Cargo.toml
+++ b/zebra-test/Cargo.toml
@@ -24,7 +24,7 @@ futures = "0.3.21"
 color-eyre = "0.5.11"
 owo-colors = "3.4.0"
 spandoc = "0.2.2"
-thiserror = "1.0.30"
+thiserror = "1.0.31"
 tracing-subscriber = "0.2.25"
 tracing-error = "0.1.2"
 tracing = "0.1.31"
diff --git a/zebrad/Cargo.toml b/zebrad/Cargo.toml
index 599ad2e3..58162b69 100644
--- a/zebrad/Cargo.toml
+++ b/zebrad/Cargo.toml
@@ -42,7 +42,7 @@ tower = { version = "0.4.12", features = ["hedge", "limit"] }
 pin-project = "1.0.10"
 
 color-eyre = { version = "0.5.11", features = ["issue-url"] }
-thiserror = "1.0.30"
+thiserror = "1.0.31"
 
 tracing-flame = "0.1.0"
 tracing-journald = "0.1.0"