diff --git a/Cargo.lock b/Cargo.lock
index 8355e9b..4bd6fdb 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -983,7 +983,7 @@ dependencies = [
  "serde",
  "serde_derive",
  "serde_json",
- "sha2 0.9.9",
+ "sha2",
  "sha3 0.10.1",
  "structopt",
 ]
@@ -1050,7 +1050,7 @@ dependencies = [
  "rand_chacha",
  "rayon",
  "serde",
- "sha2 0.10.2",
+ "sha2",
  "zeroize",
 ]
 
@@ -1095,7 +1095,7 @@ dependencies = [
  "jf-utils-derive",
  "rayon",
  "serde",
- "sha2 0.10.2",
+ "sha2",
  "tagged-base64",
 ]
 
@@ -1710,19 +1710,6 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "sha2"
-version = "0.9.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4d58a1e1bf39749807d89cf2d98ac2dfa0ff1cb3faa38fbb64dd88ac8013d800"
-dependencies = [
- "block-buffer 0.9.0",
- "cfg-if",
- "cpufeatures",
- "digest 0.9.0",
- "opaque-debug",
-]
-
 [[package]]
 name = "sha2"
 version = "0.10.2"
diff --git a/Cargo.toml b/Cargo.toml
index 25ab89e..7294faa 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,7 +22,7 @@ jf-plonk = { git = "https://github.com/EspressoSystems/jellyfish.git", branch =
 jf-relation = { git = "https://github.com/EspressoSystems/jellyfish.git", branch = "main" }
 jf-primitives = { git = "https://github.com/EspressoSystems/jellyfish.git", branch = "main" }
 jf-utils = { git = "https://github.com/EspressoSystems/jellyfish.git", branch = "main" }
-sha2 = { version = "0.9.5", default-features = false }
+sha2 = { version = "0.10.2", default-features = false }
 structopt = { version = "0.3.22", default-features = false }
 rand = { version = "0.8.4", default-features = false, features = [ "alloc" ] }
 rand_chacha = { version = "0.3.1" }