diff --git a/Cargo.lock b/Cargo.lock
index 888abf5853b4a..6fdf8d3993332 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2881,7 +2881,7 @@ dependencies = [
 [[package]]
 name = "fastcrypto"
 version = "0.1.4"
-source = "git+https://github.com/MystenLabs/fastcrypto?rev=af2d40caa3db127e60182591b8c7decfabea399c#af2d40caa3db127e60182591b8c7decfabea399c"
+source = "git+https://github.com/MystenLabs/fastcrypto?rev=b42ed07f24ac2b98afdb80b1d9cceb6e75d36a42#b42ed07f24ac2b98afdb80b1d9cceb6e75d36a42"
 dependencies = [
  "aes",
  "aes-gcm",
@@ -2929,7 +2929,7 @@ dependencies = [
 [[package]]
 name = "fastcrypto-derive"
 version = "0.1.2"
-source = "git+https://github.com/MystenLabs/fastcrypto?rev=af2d40caa3db127e60182591b8c7decfabea399c#af2d40caa3db127e60182591b8c7decfabea399c"
+source = "git+https://github.com/MystenLabs/fastcrypto?rev=b42ed07f24ac2b98afdb80b1d9cceb6e75d36a42#b42ed07f24ac2b98afdb80b1d9cceb6e75d36a42"
 dependencies = [
  "convert_case 0.6.0",
  "proc-macro2 1.0.51",
@@ -2940,7 +2940,7 @@ dependencies = [
 [[package]]
 name = "fastcrypto-zkp"
 version = "0.1.0"
-source = "git+https://github.com/MystenLabs/fastcrypto?rev=af2d40caa3db127e60182591b8c7decfabea399c#af2d40caa3db127e60182591b8c7decfabea399c"
+source = "git+https://github.com/MystenLabs/fastcrypto?rev=b42ed07f24ac2b98afdb80b1d9cceb6e75d36a42#b42ed07f24ac2b98afdb80b1d9cceb6e75d36a42"
 dependencies = [
  "ark-bls12-381",
  "ark-bn254",
diff --git a/Cargo.toml b/Cargo.toml
index dc69c14f8c37e..b44500691de29 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -130,8 +130,8 @@ move-prover-boogie-backend = { git = "https://github.com/move-language/move", re
 move-stackless-bytecode = { git = "https://github.com/move-language/move", rev = "19ba60e7fa20afb22541dc25988e08a11cb3bbbe" }
 move-symbol-pool = { git = "https://github.com/move-language/move", rev = "19ba60e7fa20afb22541dc25988e08a11cb3bbbe" }
 
-fastcrypto = { git = "https://github.com/MystenLabs/fastcrypto", rev = "af2d40caa3db127e60182591b8c7decfabea399c" }
-fastcrypto-zkp = { git = "https://github.com/MystenLabs/fastcrypto", rev = "af2d40caa3db127e60182591b8c7decfabea399c", package = "fastcrypto-zkp" }
+fastcrypto = { git = "https://github.com/MystenLabs/fastcrypto", rev = "b42ed07f24ac2b98afdb80b1d9cceb6e75d36a42" }
+fastcrypto-zkp = { git = "https://github.com/MystenLabs/fastcrypto", rev = "b42ed07f24ac2b98afdb80b1d9cceb6e75d36a42", package = "fastcrypto-zkp" }
 
 # anemo dependencies
 anemo = { git = "https://github.com/mystenlabs/anemo.git", rev = "4ebf4a86952827ff0fcce6a2d8a80f42f34efed9" }
diff --git a/crates/workspace-hack/Cargo.toml b/crates/workspace-hack/Cargo.toml
index 000b8794ccc72..59d06e7c42f30 100644
--- a/crates/workspace-hack/Cargo.toml
+++ b/crates/workspace-hack/Cargo.toml
@@ -189,8 +189,8 @@ expect-test = { version = "1", default-features = false }
 eyre = { version = "0.6" }
 fail-9fbad63c4bcf4a8f = { package = "fail", version = "0.4", default-features = false }
 fail-d8f496e17d97b5cb = { package = "fail", version = "0.5", default-features = false }
-fastcrypto = { git = "https://github.com/MystenLabs/fastcrypto", rev = "af2d40caa3db127e60182591b8c7decfabea399c", features = ["copy_key"] }
-fastcrypto-zkp = { git = "https://github.com/MystenLabs/fastcrypto", rev = "af2d40caa3db127e60182591b8c7decfabea399c", default-features = false }
+fastcrypto = { git = "https://github.com/MystenLabs/fastcrypto", rev = "b42ed07f24ac2b98afdb80b1d9cceb6e75d36a42", features = ["copy_key"] }
+fastcrypto-zkp = { git = "https://github.com/MystenLabs/fastcrypto", rev = "b42ed07f24ac2b98afdb80b1d9cceb6e75d36a42", default-features = false }
 fastrand = { version = "1", default-features = false }
 fd-lock = { version = "3", default-features = false }
 fdlimit = { version = "0.2", default-features = false }
@@ -829,9 +829,9 @@ expect-test = { version = "1", default-features = false }
 eyre = { version = "0.6" }
 fail-9fbad63c4bcf4a8f = { package = "fail", version = "0.4", default-features = false }
 fail-d8f496e17d97b5cb = { package = "fail", version = "0.5", default-features = false }
-fastcrypto = { git = "https://github.com/MystenLabs/fastcrypto", rev = "af2d40caa3db127e60182591b8c7decfabea399c", features = ["copy_key"] }
-fastcrypto-derive = { git = "https://github.com/MystenLabs/fastcrypto", rev = "af2d40caa3db127e60182591b8c7decfabea399c", default-features = false }
-fastcrypto-zkp = { git = "https://github.com/MystenLabs/fastcrypto", rev = "af2d40caa3db127e60182591b8c7decfabea399c", default-features = false }
+fastcrypto = { git = "https://github.com/MystenLabs/fastcrypto", rev = "b42ed07f24ac2b98afdb80b1d9cceb6e75d36a42", features = ["copy_key"] }
+fastcrypto-derive = { git = "https://github.com/MystenLabs/fastcrypto", rev = "b42ed07f24ac2b98afdb80b1d9cceb6e75d36a42", default-features = false }
+fastcrypto-zkp = { git = "https://github.com/MystenLabs/fastcrypto", rev = "b42ed07f24ac2b98afdb80b1d9cceb6e75d36a42", default-features = false }
 fastrand = { version = "1", default-features = false }
 fd-lock = { version = "3", default-features = false }
 fdlimit = { version = "0.2", default-features = false }