diff --git a/Cargo.lock b/Cargo.lock
index f5b15c6..ba23489 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -46,9 +46,9 @@ checksum = "b588b76d00fde79687d7646a9b5bdf3cc0f655e0bbd080335a95d7e96f3587da"
 
 [[package]]
 name = "blake3"
-version = "1.8.5"
+version = "1.8.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0aa83c34e62843d924f905e0f5c866eb1dd6545fc4d719e803d9ba6030371fce"
+checksum = "76ae7bad254120e9e4c63bafc385310756f90c484eac0e36b8317cf09cb92a77"
 dependencies = [
  "arrayref",
  "arrayvec",
diff --git a/Cargo.toml b/Cargo.toml
index 230d7cf..ebcfc12 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,7 +17,7 @@ default = []
 repository-tasks = []
 
 [dependencies]
-blake3 = { version = "=1.8.5", default-features = false, features = ["pure", "std"] }
+blake3 = { version = "=1.8.6", default-features = false, features = ["pure", "std"] }
 cap-fs-ext = { version = "=4.0.2", default-features = false, features = ["std"] }
 cap-std = { version = "=4.0.2", default-features = false }
 rustix = { version = "=1.1.4", default-features = false, features = ["fs", "std"] }
diff --git a/xtask/Cargo.toml b/xtask/Cargo.toml
index a108967..464127a 100644
--- a/xtask/Cargo.toml
+++ b/xtask/Cargo.toml
@@ -26,7 +26,7 @@ repository-tasks = [
 
 [dependencies]
 # Independent Golden File Worldline oracle recomputes BLAKE3 corpus witnesses.
-blake3 = { version = "=1.8.5", default-features = false, features = ["pure", "std"], optional = true }
+blake3 = { version = "=1.8.6", default-features = false, features = ["pure", "std"], optional = true }
 # Capability-relative, no-follow opens close source-scan replacement races.
 cap-fs-ext = { version = "=4.0.2", default-features = false, features = ["std"], optional = true }
 cap-std = { version = "=4.0.2", default-features = false, optional = true }