diff --git a/Cargo.lock b/Cargo.lock
index 8068839eef..5ce15f6102 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -9,7 +9,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fe438c63458706e03479442743baae6c88256498e6431708f6dfc520a26515d3"
 dependencies = [
  "lazy_static",
- "regex 1.8.4",
+ "regex 1.9.5",
 ]
 
 [[package]]
@@ -155,7 +155,7 @@ version = "0.7.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cc936419f96fa211c1b9166887b38e5e40b19958e5b895be7c1f93adec7071ac"
 dependencies = [
- "memchr 2.5.0",
+ "memchr 2.6.3",
 ]
 
 [[package]]
@@ -164,7 +164,7 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "43f6cb1bf222025340178f382c426f13757b2960e89779dfcb319c32542a5a41"
 dependencies = [
- "memchr 2.5.0",
+ "memchr 2.6.3",
 ]
 
 [[package]]
@@ -404,7 +404,7 @@ dependencies = [
  "peeking_take_while",
  "proc-macro2",
  "quote",
- "regex 1.8.4",
+ "regex 1.9.5",
  "rustc-hash",
  "shlex",
 ]
@@ -536,7 +536,7 @@ version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a246e68bb43f6cd9db24bea052a53e40405417c5fb372e3d1a8a7f770a564ef5"
 dependencies = [
- "memchr 2.5.0",
+ "memchr 2.6.3",
  "serde 1.0.164",
 ]
 
@@ -1362,7 +1362,7 @@ dependencies = [
  "atty",
  "humantime",
  "log 0.4.19",
- "regex 1.8.4",
+ "regex 1.9.5",
  "termcolor",
 ]
 
@@ -1375,7 +1375,7 @@ dependencies = [
  "humantime",
  "is-terminal",
  "log 0.4.19",
- "regex 1.8.4",
+ "regex 1.9.5",
  "termcolor",
 ]
 
@@ -2156,7 +2156,7 @@ dependencies = [
  "futures-macro 0.3.28",
  "futures-sink 0.3.28",
  "futures-task 0.3.28",
- "memchr 2.5.0",
+ "memchr 2.6.3",
  "pin-project-lite",
  "pin-utils",
  "slab 0.4.8",
@@ -2256,7 +2256,7 @@ dependencies = [
  "bstr",
  "fnv 1.0.7",
  "log 0.4.19",
- "regex 1.8.4",
+ "regex 1.9.5",
 ]
 
 [[package]]
@@ -2777,6 +2777,7 @@ dependencies = [
  "primitive-types",
  "rand 0.8.5",
  "rayon",
+ "regex 1.9.5",
  "reqwest",
  "sc-keystore",
  "serde 1.0.164",
@@ -4623,7 +4624,7 @@ version = "0.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f099785f7595cc4b4553a174ce30dd7589ef93391ff414dbb67f62392b9e0ce1"
 dependencies = [
- "regex-automata",
+ "regex-automata 0.1.10",
 ]
 
 [[package]]
@@ -4653,9 +4654,9 @@ dependencies = [
 
 [[package]]
 name = "memchr"
-version = "2.5.0"
+version = "2.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
+checksum = "8f232d6ef707e1956a43342693d2a31e72989554d58299d7a88738cc95b0d35c"
 
 [[package]]
 name = "memfd"
@@ -4872,7 +4873,7 @@ dependencies = [
  "http 0.2.9",
  "httparse 1.8.0",
  "log 0.4.19",
- "memchr 2.5.0",
+ "memchr 2.6.3",
  "mime",
  "spin 0.9.8",
  "version_check",
@@ -4987,7 +4988,7 @@ version = "7.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d273983c5a657a70a3e8f2a01329822f3b8c8172b73826411a55751e404a0a4a"
 dependencies = [
- "memchr 2.5.0",
+ "memchr 2.6.3",
  "minimal-lexical",
 ]
 
@@ -5235,7 +5236,7 @@ dependencies = [
  "crc32fast",
  "hashbrown 0.12.3",
  "indexmap 1.9.3",
- "memchr 2.5.0",
+ "memchr 2.6.3",
 ]
 
 [[package]]
@@ -5244,7 +5245,7 @@ version = "0.30.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "03b4680b86d9cfafba8fc491dc9b6df26b68cf40e9e6cd73909194759a63c385"
 dependencies = [
- "memchr 2.5.0",
+ "memchr 2.6.3",
 ]
 
 [[package]]
@@ -5970,7 +5971,7 @@ checksum = "7037e5e93e0172a5a96874380bf73bc6ecef022e26fa25f2be26864d6b3ba95d"
 dependencies = [
  "lazy_static",
  "num 0.2.1",
- "regex 1.8.4",
+ "regex 1.9.5",
 ]
 
 [[package]]
@@ -6120,7 +6121,7 @@ dependencies = [
  "itertools",
  "normalize-line-endings",
  "predicates-core",
- "regex 1.8.4",
+ "regex 1.9.5",
 ]
 
 [[package]]
@@ -6242,7 +6243,7 @@ dependencies = [
  "fnv 1.0.7",
  "lazy_static",
  "libc",
- "memchr 2.5.0",
+ "memchr 2.6.3",
  "parking_lot 0.12.1",
  "procfs",
  "protobuf",
@@ -6528,13 +6529,14 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.8.4"
+version = "1.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d0ab3ca65655bb1e41f2a8c8cd662eb4fb035e67c3f78da1d61dffe89d07300f"
+checksum = "697061221ea1b4a94a624f67d0ae2bfe4e22b8a17b6a192afb11046542cc8c47"
 dependencies = [
  "aho-corasick 1.0.2",
- "memchr 2.5.0",
- "regex-syntax 0.7.2",
+ "memchr 2.6.3",
+ "regex-automata 0.3.8",
+ "regex-syntax 0.7.5",
 ]
 
 [[package]]
@@ -6546,6 +6548,17 @@ dependencies = [
  "regex-syntax 0.6.29",
 ]
 
+[[package]]
+name = "regex-automata"
+version = "0.3.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c2f401f4955220693b56f8ec66ee9c78abffd8d1c4f23dc41a23839eb88f0795"
+dependencies = [
+ "aho-corasick 1.0.2",
+ "memchr 2.6.3",
+ "regex-syntax 0.7.5",
+]
+
 [[package]]
 name = "regex-syntax"
 version = "0.6.12"
@@ -6562,9 +6575,9 @@ checksum = "f162c6dd7b008981e4d40210aca20b4bd0f9b60ca9271061b07f78537722f2e1"
 
 [[package]]
 name = "regex-syntax"
-version = "0.7.2"
+version = "0.7.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "436b050e76ed2903236f032a59761c1eb99e1b0aead2c257922771dab1fc8c78"
+checksum = "dbb5fb1acd8a1a18b3dd5be62d25485eb770e05afb408a9627d14d451bae12da"
 
 [[package]]
 name = "reqwest"
@@ -7803,7 +7816,7 @@ dependencies = [
  "paste",
  "primitive-types",
  "rand 0.8.5",
- "regex 1.8.4",
+ "regex 1.9.5",
  "scale-info",
  "schnorrkel",
  "secp256k1",
@@ -8008,7 +8021,7 @@ source = "git+https://github.com/paritytech/substrate.git?branch=polkadot-v0.9.4
 dependencies = [
  "backtrace",
  "lazy_static",
- "regex 1.8.4",
+ "regex 1.9.5",
 ]
 
 [[package]]
@@ -8856,7 +8869,7 @@ dependencies = [
  "chrono 0.4.26",
  "lazy_static",
  "matchers",
- "regex 1.8.4",
+ "regex 1.9.5",
  "serde 1.0.164",
  "serde_json 1.0.96",
  "sharded-slab",
@@ -9359,7 +9372,7 @@ dependencies = [
  "cc",
  "cxx",
  "cxx-build",
- "regex 1.8.4",
+ "regex 1.9.5",
 ]
 
 [[package]]
@@ -9858,7 +9871,7 @@ version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "61de7bac303dc551fe038e2b3cef0f571087a47571ea6e79a87692ac99b99699"
 dependencies = [
- "memchr 2.5.0",
+ "memchr 2.6.3",
 ]
 
 [[package]]
diff --git a/cli/Cargo.toml b/cli/Cargo.toml
index 3a15f45a4c..665b74c14d 100644
--- a/cli/Cargo.toml
+++ b/cli/Cargo.toml
@@ -25,6 +25,7 @@ sgx_crypto_helper = { branch = "master", git = "https://github.com/apache/teacla
 thiserror = "1.0"
 ws = { version = "0.9.1", features = ["ssl"] }
 urlencoding = "2.1.3"
+regex = "1.9.5"
 
 # scs / integritee
 my-node-runtime = { package = "integritee-node-runtime", git = "https://github.com/integritee-network/integritee-node.git", branch = "sdk-v0.12.0-polkadot-v0.9.42" }
diff --git a/cli/README.md b/cli/README.md
index 44e89c789e..e0e2cfd1fb 100644
--- a/cli/README.md
+++ b/cli/README.md
@@ -29,3 +29,7 @@ Trusted call 0x69ddfd1698bd2d629180c2dca34ce7add087526c51f43cf68245241b3f13154e
 ## housekeeping tasks
 
 populate all TCBinfo's Intel has published
+```
+../target/release/integritee-cli register-tcb-info //Alice --fmspc 00606a000000
+../target/release/integritee-cli register-tcb-info //Alice --all
+```
diff --git a/cli/src/base_cli/commands/register_tcb_info.rs b/cli/src/base_cli/commands/register_tcb_info.rs
index 8e40cdb333..12c6e081b1 100644
--- a/cli/src/base_cli/commands/register_tcb_info.rs
+++ b/cli/src/base_cli/commands/register_tcb_info.rs
@@ -23,6 +23,7 @@ use itp_node_api::api_client::{ParentchainExtrinsicSigner, TEEREX};
 use itp_types::{parentchain::Hash, OpaqueCall};
 use itp_utils::ToHexPrefixed;
 use log::*;
+use regex::Regex;
 use serde::Deserialize;
 use serde_json::Value;
 use sp_core::sr25519 as sr25519_core;
@@ -103,18 +104,22 @@ impl RegisterTcbInfoCommand {
 				.to_string();
 				trace!("certificate chain: \n{}", certificate_chain);
 
-				let tcb_info: TcbInfo = response.json().expect("Error parsing JSON");
+				let body = response.text().unwrap();
+				trace!("raw json: \n{}", body);
+				let re = Regex::new(r#"tcbInfo\"\s?:(\{.*\}),\s?\"signature"#).unwrap();
+				let tcb_info = &re.captures(&body).unwrap()[1];
+				let re = Regex::new(r#"\"signature\"\s?:\s?\"(.*)\"\}"#).unwrap();
+				let intel_signature_hex = &re.captures(&body).unwrap()[1];
+				trace!("TCB info: {}", tcb_info);
+				trace!("signature: {}", body);
 
-				trace!("TCB info: {:?}", tcb_info.tcbInfo);
-				trace!("signature: {:?}", tcb_info.signature);
-
-				let intel_signature = hex::decode(tcb_info.signature).unwrap();
+				let intel_signature = hex::decode(intel_signature_hex).unwrap();
 
 				let call = OpaqueCall::from_tuple(&compose_call!(
 					chain_api.metadata(),
 					TEEREX,
 					"register_tcb_info",
-					tcb_info.tcbInfo.to_string(),
+					tcb_info,
 					intel_signature,
 					certificate_chain
 				));