diff --git a/Cargo-minimal.lock b/Cargo-minimal.lock
index 2aa15fc41..1b19231fe 100644
--- a/Cargo-minimal.lock
+++ b/Cargo-minimal.lock
@@ -191,9 +191,9 @@ checksum = "3011d1213f159867b13cfd6ac92d2cd5f1345762c63be3554e84092d85a50bbd"
 
 [[package]]
 name = "honggfuzz"
-version = "0.5.55"
+version = "0.5.56"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "848e9c511092e0daa0a35a63e8e6e475a3e8f870741448b9f6028d69b142f18e"
+checksum = "7c76b6234c13c9ea73946d1379d33186151148e0da231506b964b44f3d023505"
 dependencies = [
  "lazy_static",
  "memmap2",
@@ -220,15 +220,15 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.64"
+version = "0.2.155"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "74dfca3d9957906e8d1e6a0b641dc9a59848e793f1da2165889fd4f62d10d79c"
+checksum = "97b3888a4aecf77e811145cadf6eef5901f4782c53886191b2f693f24761847c"
 
 [[package]]
 name = "memmap2"
-version = "0.5.10"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "83faa42c0a078c393f6b29d5db232d8be22776a891f8f56e5284faee4a20b327"
+checksum = "fe751422e4a8caa417e13c3ea66452215d7d63e19e604f4980461212f3ae1322"
 dependencies = [
  "libc",
 ]
diff --git a/Cargo-recent.lock b/Cargo-recent.lock
index 085deb0f3..dc727fe4b 100644
--- a/Cargo-recent.lock
+++ b/Cargo-recent.lock
@@ -184,9 +184,9 @@ checksum = "3011d1213f159867b13cfd6ac92d2cd5f1345762c63be3554e84092d85a50bbd"
 
 [[package]]
 name = "honggfuzz"
-version = "0.5.55"
+version = "0.5.56"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "848e9c511092e0daa0a35a63e8e6e475a3e8f870741448b9f6028d69b142f18e"
+checksum = "7c76b6234c13c9ea73946d1379d33186151148e0da231506b964b44f3d023505"
 dependencies = [
  "lazy_static",
  "memmap2",
@@ -213,15 +213,15 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.142"
+version = "0.2.155"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a987beff54b60ffa6d51982e1aa1146bc42f19bd26be28b0586f252fccf5317"
+checksum = "97b3888a4aecf77e811145cadf6eef5901f4782c53886191b2f693f24761847c"
 
 [[package]]
 name = "memmap2"
-version = "0.5.10"
+version = "0.9.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "83faa42c0a078c393f6b29d5db232d8be22776a891f8f56e5284faee4a20b327"
+checksum = "fe751422e4a8caa417e13c3ea66452215d7d63e19e604f4980461212f3ae1322"
 dependencies = [
  "libc",
 ]
diff --git a/fuzz/Cargo.toml b/fuzz/Cargo.toml
index 706c8d897..f69af96f7 100644
--- a/fuzz/Cargo.toml
+++ b/fuzz/Cargo.toml
@@ -9,7 +9,7 @@ publish = false
 cargo-fuzz = true
 
 [dependencies]
-honggfuzz = { version = "0.5.55", default-features = false }
+honggfuzz = { version = "0.5.56", default-features = false }
 bitcoin = { path = "../bitcoin", features = [ "serde" ] }
 
 serde = { version = "1.0.103", features = [ "derive" ] }