diff --git a/Cargo.lock b/Cargo.lock
index 46a7163b4..c3ad8a44f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -688,9 +688,9 @@ dependencies = [
 
 [[package]]
 name = "chrono"
-version = "0.4.27"
+version = "0.4.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f56b4c72906975ca04becb8a30e102dfecddd0c06181e3e95ddc444be28881f8"
+checksum = "95ed24df0632f708f5f6d8082675bef2596f7084dee3dd55f632290bf35bfe0f"
 dependencies = [
  "android-tzdata",
  "iana-time-zone",
diff --git a/zebra-chain/Cargo.toml b/zebra-chain/Cargo.toml
index a102aab99..6c348e34e 100644
--- a/zebra-chain/Cargo.toml
+++ b/zebra-chain/Cargo.toml
@@ -85,7 +85,7 @@ zcash_note_encryption = "0.4.0"
 zcash_primitives = { version = "0.12.0", features = ["transparent-inputs"] }
 
 # Time
-chrono = { version = "0.4.26", default-features = false, features = ["clock", "std", "serde"] }
+chrono = { version = "0.4.28", default-features = false, features = ["clock", "std", "serde"] }
 humantime = "2.1.0"
 
 # Error Handling & Formatting
diff --git a/zebra-consensus/Cargo.toml b/zebra-consensus/Cargo.toml
index f4a2bf26e..9ce39f438 100644
--- a/zebra-consensus/Cargo.toml
+++ b/zebra-consensus/Cargo.toml
@@ -43,7 +43,7 @@ jubjub = "0.10.0"
 rand = "0.8.5"
 rayon = "1.7.0"
 
-chrono = { version = "0.4.26", default-features = false, features = ["clock", "std"] }
+chrono = { version = "0.4.28", default-features = false, features = ["clock", "std"] }
 displaydoc = "0.2.4"
 lazy_static = "1.4.0"
 once_cell = "1.18.0"
diff --git a/zebra-network/Cargo.toml b/zebra-network/Cargo.toml
index e6d8a9794..93bf82aaf 100644
--- a/zebra-network/Cargo.toml
+++ b/zebra-network/Cargo.toml
@@ -43,7 +43,7 @@ proptest-impl = ["proptest", "proptest-derive", "zebra-chain/proptest-impl"]
 bitflags = "2.4.0"
 byteorder = "1.4.3"
 bytes = "1.4.0"
-chrono = { version = "0.4.26", default-features = false, features = ["clock", "std"] }
+chrono = { version = "0.4.28", default-features = false, features = ["clock", "std"] }
 dirs = "5.0.1"
 hex = "0.4.3"
 humantime-serde = "1.1.1"
diff --git a/zebra-rpc/Cargo.toml b/zebra-rpc/Cargo.toml
index d0ae564cc..fbe16d4ae 100644
--- a/zebra-rpc/Cargo.toml
+++ b/zebra-rpc/Cargo.toml
@@ -39,7 +39,7 @@ proptest-impl = [
 ]
 
 [dependencies]
-chrono = { version = "0.4.26", default-features = false, features = ["clock", "std"] }
+chrono = { version = "0.4.28", default-features = false, features = ["clock", "std"] }
 futures = "0.3.28"
 
 # lightwalletd sends JSON-RPC requests over HTTP 1.1
diff --git a/zebra-state/Cargo.toml b/zebra-state/Cargo.toml
index 87bdcc608..e9fd54e13 100644
--- a/zebra-state/Cargo.toml
+++ b/zebra-state/Cargo.toml
@@ -44,7 +44,7 @@ elasticsearch = [
 
 [dependencies]
 bincode = "1.3.3"
-chrono = { version = "0.4.26", default-features = false, features = ["clock", "std"] }
+chrono = { version = "0.4.28", default-features = false, features = ["clock", "std"] }
 dirs = "5.0.1"
 futures = "0.3.28"
 hex = "0.4.3"
diff --git a/zebrad/Cargo.toml b/zebrad/Cargo.toml
index 03888156e..f3ebf3f1e 100644
--- a/zebrad/Cargo.toml
+++ b/zebrad/Cargo.toml
@@ -154,7 +154,7 @@ zebra-utils = { path = "../zebra-utils", version = "1.0.0-beta.29", optional = t
 
 abscissa_core = "0.7.0"
 clap = { version = "4.4.2", features = ["cargo"] }
-chrono = { version = "0.4.26", default-features = false, features = ["clock", "std"] }
+chrono = { version = "0.4.28", default-features = false, features = ["clock", "std"] }
 humantime-serde = "1.1.1"
 indexmap = "2.0.0"
 lazy_static = "1.4.0"