diff --git a/rust/Cargo.lock b/rust/Cargo.lock
index ffdf8d2..a2a52cf 100644
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -1,5 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "aho-corasick"
 version = "0.6.9"
@@ -87,11 +89,12 @@ checksum = "134951f4028bdadb9b84baf4232681efbf277da25144b9b0ad65df75946c422b"
 
 [[package]]
 name = "flatbuffers"
-version = "0.5.0"
+version = "23.5.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea0c34f669be9911826facafe996adfda978aeee67285a13556869e2d8b8331f"
+checksum = "4dac53e22462d78c16d64a1cd22371b54cc3fe94aa15e7886a2fa6e5d1ab8640"
 dependencies = [
- "smallvec",
+ "bitflags",
+ "rustc_version",
 ]
 
 [[package]]
@@ -299,12 +302,27 @@ dependencies = [
  "ucd-util",
 ]
 
+[[package]]
+name = "rustc_version"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
+dependencies = [
+ "semver",
+]
+
 [[package]]
 name = "ryu"
 version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "71d301d4193d031abdd79ff7e3dd721168a9572ef3fe51a1517aba235bd8f86e"
 
+[[package]]
+name = "semver"
+version = "1.0.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bebd363326d05ec3e2f532ab7660680f3b02130d780c299bca73469d521bc0ed"
+
 [[package]]
 name = "serde"
 version = "1.0.111"
@@ -348,15 +366,6 @@ dependencies = [
  "yaml-rust",
 ]
 
-[[package]]
-name = "smallvec"
-version = "0.6.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b73ea3738b47563803ef814925e69be00799a8c07420be8b996f8e98fb2336db"
-dependencies = [
- "unreachable",
-]
-
 [[package]]
 name = "strsim"
 version = "0.8.0"
@@ -440,15 +449,6 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
 
-[[package]]
-name = "unreachable"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "382810877fe448991dfc7f0dd6e3ae5d58088fd0ea5e35189655f84e6814fa56"
-dependencies = [
- "void",
-]
-
 [[package]]
 name = "utf8-ranges"
 version = "1.0.2"
@@ -467,12 +467,6 @@ version = "0.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b5a972e5669d67ba988ce3dc826706fb0a8b01471c088cb0b6110b805cc36aed"
 
-[[package]]
-name = "void"
-version = "1.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
-
 [[package]]
 name = "wasi"
 version = "0.9.0+wasi-snapshot-preview1"
diff --git a/rust/Cargo.toml b/rust/Cargo.toml
index a89a6c8..fcee1f2 100644
--- a/rust/Cargo.toml
+++ b/rust/Cargo.toml
@@ -16,7 +16,7 @@ keywords = ["zero-knowledge", "zkproof", "cryptography"]
 fbs = []
 
 [dependencies]
-flatbuffers = "0.5.0"
+flatbuffers = "23.5.26"
 serde = { version = "1.0.111", features = ["derive"] }
 serde_json = "1.0.53"
 serde_yaml = "0.8.13"