diff --git a/.gitmodules b/.gitmodules
index 27593ef..e579aae 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -16,4 +16,3 @@
 [submodule "hash/risc0/external/risc0"]
 	path = hash/risc0/external/risc0
 	url = https://github.com/risc0/risc0.git
-	branch = release-0.20
diff --git a/hash/risc0/README.md b/hash/risc0/README.md
new file mode 100644
index 0000000..edaa9ab
--- /dev/null
+++ b/hash/risc0/README.md
@@ -0,0 +1,7 @@
+Benchmarking inside risc'0 zkvm
+--------------------------------
+
+- `external` folder contains risc0 as a git submodule.
+- `bench` folder contains the benchmarking for different hash functions. Go to the `bench/README.md` for more details.
+- `inner_proof` folder contains methods for generating the Receipt for sha256 which is being used as an inner proof in `composition`
+- `composition` folder contains methods of proof composition which uses `inner_proof`.
diff --git a/hash/risc0/composition/Cargo.lock b/hash/risc0/composition/Cargo.lock
index 9e5e2c8..d2dff75 100644
--- a/hash/risc0/composition/Cargo.lock
+++ b/hash/risc0/composition/Cargo.lock
@@ -398,9 +398,9 @@ dependencies = [
 
 [[package]]
 name = "cargo-platform"
-version = "0.1.6"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ceed8ef69d8518a5dda55c07425450b58a4e1946f4951eab6d7191ee86c2443d"
+checksum = "e34637b3140142bdf929fb439e8aa4ebad7651ebf7b1080b3930aa16ac1459ff"
 dependencies = [
  "serde",
 ]
diff --git a/hash/risc0/composition/methods/guest/src/main.rs b/hash/risc0/composition/methods/guest/src/main.rs
index 3d2cecf..1f30186 100644
--- a/hash/risc0/composition/methods/guest/src/main.rs
+++ b/hash/risc0/composition/methods/guest/src/main.rs
@@ -18,8 +18,9 @@ use risc0_zkvm::sha;
 fn main() {
    
     let hash: sha::Digest = env::read();
-
+    let hash2: sha::Digest = env::read();
     env::verify(INNER_PROOF_METHOD_ID, &serde::to_vec(&hash).unwrap()).unwrap();
+    env::verify(INNER_PROOF_METHOD_ID, &serde::to_vec(&hash2).unwrap()).unwrap();
     
     env::commit(&hash);
 }
diff --git a/hash/risc0/composition/run.sh b/hash/risc0/composition/run.sh
index 7acdd03..bd6dfec 100755
--- a/hash/risc0/composition/run.sh
+++ b/hash/risc0/composition/run.sh
@@ -1 +1 @@
-./target/release/composition
\ No newline at end of file
+./target/release/composition 32
\ No newline at end of file
diff --git a/hash/risc0/composition/src/main.rs b/hash/risc0/composition/src/main.rs
index 470bfe7..9a6a17b 100644
--- a/hash/risc0/composition/src/main.rs
+++ b/hash/risc0/composition/src/main.rs
@@ -17,18 +17,33 @@ use inner_proof::sha_bench;
 use risc0_zkvm::{default_prover, ExecutorEnv};
 use risc0_zkvm::sha;
 use std::time::Instant;
+use std::process;
 
 fn main() {
     
-    let (hash_receipt, hash) = sha_bench(32);
+    let args: Vec<String> = std::env::args().collect();
 
+    if args.len() != 2 {
+        println!("Wrong number of arguments! The program expects one arguments: <size>");
+        // Exit the program with a non-zero exit code
+        process::exit(1);
+    }
+    
+    let data_size = args[1].parse::<usize>().unwrap();
+    
     let t0 = Instant::now();
 
+    let (hash_receipt, hash) = sha_bench(data_size.try_into().unwrap());
+    let (hash_receipt2, hash2) = sha_bench(data_size.try_into().unwrap());
+
     let env = ExecutorEnv::builder()
         // add_assumption makes the receipt to be verified available to the prover.
         .add_assumption(hash_receipt)
         .write(&hash)
         .unwrap()
+        .add_assumption(hash_receipt2)
+        .write(&hash2)
+        .unwrap()
         .build()
         .unwrap();
 
diff --git a/hash/risc0/external/risc0 b/hash/risc0/external/risc0
index a4d2b5d..1742ef8 160000
--- a/hash/risc0/external/risc0
+++ b/hash/risc0/external/risc0
@@ -1 +1 @@
-Subproject commit a4d2b5d95685554ee34a39d60b40fa2c5deff57a
+Subproject commit 1742ef8098d246871055501a0559811c9a8fece4
diff --git a/hash/risc0/inner_proof/src/main.rs b/hash/risc0/inner_proof/src/main.rs
index 50c6f19..0bb1c0d 100644
--- a/hash/risc0/inner_proof/src/main.rs
+++ b/hash/risc0/inner_proof/src/main.rs
@@ -11,9 +11,21 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 use inner_proof::sha_bench;
 use inner_proof_methods::INNER_PROOF_METHOD_ID;
+use std::process;
 
 fn main() {
-    let (receipt, _output) = sha_bench(32);
+
+    let args: Vec<String> = std::env::args().collect();
+
+    if args.len() != 2 {
+        println!("Wrong number of arguments! The program expects two arguments: <number_of_composition> and <size>");
+        // Exit the program with a non-zero exit code
+        process::exit(1);
+    }
+    
+    let data_size = args[1].parse::<usize>().unwrap();
+
+    let (receipt, _output) = sha_bench(data_size.try_into().unwrap());
 
     // Verify receipt, panic if it's wrong
     receipt.verify(INNER_PROOF_METHOD_ID).expect(