diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index f8af7c2..b746bcf 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -159,7 +159,7 @@ jobs:
               fi
   public-push:
     name: Push Docker Images to Docker hub
-    if: contains('main holesky mainnet hack-merge-table v1_base 129/merge', github.ref_name) || startsWith(github.ref, 'refs/tags/')
+    if: contains('main holesky mainnet hack-merge-table v1_base 140/merge', github.ref_name) || startsWith(github.ref, 'refs/tags/')
     runs-on: ${{needs.base.outputs.RUNNER}}
     needs:
       - build
diff --git a/Cargo.lock b/Cargo.lock
index 2a648cd..c3222fd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3136,6 +3136,26 @@ version = "0.31.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "07e28edb80900c19c28f1072f2e8aeca7fa06b23cd4169cefe1af5aa3260783f"
 
+[[package]]
+name = "git-version"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1ad568aa3db0fcbc81f2f116137f263d7304f512a1209b35b85150d3ef88ad19"
+dependencies = [
+ "git-version-macro",
+]
+
+[[package]]
+name = "git-version-macro"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53010ccb100b96a67bc32c0175f0ed1426b31b655d562898e57325f81c023ac0"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.90",
+]
+
 [[package]]
 name = "glob"
 version = "0.3.1"
@@ -3156,8 +3176,8 @@ dependencies = [
 
 [[package]]
 name = "gnark-utils"
-version = "0.1.0"
-source = "git+https://github.com/Lagrange-Labs/mapreduce-plonky2.git?rev=v1.1.2#77fa458c7d136cdea2db4637d0031facfe7d38d7"
+version = "1.2.1"
+source = "git+https://github.com/Lagrange-Labs/mapreduce-plonky2.git?rev=1.2.1#196952fe435d637757dda2c02ac3f694eb57cd18"
 dependencies = [
  "anyhow",
  "base64 0.22.1",
@@ -3176,8 +3196,8 @@ dependencies = [
 
 [[package]]
 name = "groth16_framework"
-version = "0.1.0"
-source = "git+https://github.com/Lagrange-Labs/mapreduce-plonky2.git?rev=v1.1.2#77fa458c7d136cdea2db4637d0031facfe7d38d7"
+version = "1.2.1"
+source = "git+https://github.com/Lagrange-Labs/mapreduce-plonky2.git?rev=1.2.1#196952fe435d637757dda2c02ac3f694eb57cd18"
 dependencies = [
  "alloy",
  "anyhow",
@@ -3981,6 +4001,7 @@ dependencies = [
  "metrics-exporter-prometheus",
  "miette",
  "mimalloc",
+ "mp2_common",
  "prost",
  "protox",
  "rand",
@@ -4287,8 +4308,8 @@ checksum = "c9be0862c1b3f26a88803c4a49de6889c10e608b3ee9344e6ef5b45fb37ad3d1"
 
 [[package]]
 name = "mp2_common"
-version = "0.1.0"
-source = "git+https://github.com/Lagrange-Labs/mapreduce-plonky2.git?rev=v1.1.2#77fa458c7d136cdea2db4637d0031facfe7d38d7"
+version = "1.2.1"
+source = "git+https://github.com/Lagrange-Labs/mapreduce-plonky2.git?rev=1.2.1#196952fe435d637757dda2c02ac3f694eb57cd18"
 dependencies = [
  "alloy",
  "anyhow",
@@ -4296,6 +4317,7 @@ dependencies = [
  "derive_more 1.0.0",
  "eth_trie",
  "ethereum-types",
+ "git-version",
  "hashbrown 0.15.0",
  "hex",
  "itertools 0.13.0",
@@ -4314,8 +4336,8 @@ dependencies = [
 
 [[package]]
 name = "mp2_test"
-version = "0.1.0"
-source = "git+https://github.com/Lagrange-Labs/mapreduce-plonky2.git?rev=v1.1.2#77fa458c7d136cdea2db4637d0031facfe7d38d7"
+version = "1.2.1"
+source = "git+https://github.com/Lagrange-Labs/mapreduce-plonky2.git?rev=1.2.1#196952fe435d637757dda2c02ac3f694eb57cd18"
 dependencies = [
  "alloy",
  "anyhow",
@@ -4333,8 +4355,8 @@ dependencies = [
 
 [[package]]
 name = "mp2_v1"
-version = "0.1.0"
-source = "git+https://github.com/Lagrange-Labs/mapreduce-plonky2.git?rev=v1.1.2#77fa458c7d136cdea2db4637d0031facfe7d38d7"
+version = "1.2.1"
+source = "git+https://github.com/Lagrange-Labs/mapreduce-plonky2.git?rev=1.2.1#196952fe435d637757dda2c02ac3f694eb57cd18"
 dependencies = [
  "alloy",
  "anyhow",
@@ -4712,8 +4734,8 @@ dependencies = [
 
 [[package]]
 name = "parsil"
-version = "0.1.0"
-source = "git+https://github.com/Lagrange-Labs/mapreduce-plonky2.git?rev=v1.1.2#77fa458c7d136cdea2db4637d0031facfe7d38d7"
+version = "1.2.1"
+source = "git+https://github.com/Lagrange-Labs/mapreduce-plonky2.git?rev=1.2.1#196952fe435d637757dda2c02ac3f694eb57cd18"
 dependencies = [
  "alloy",
  "anyhow",
@@ -5474,8 +5496,8 @@ dependencies = [
 
 [[package]]
 name = "recursion_framework"
-version = "0.1.0"
-source = "git+https://github.com/Lagrange-Labs/mapreduce-plonky2.git?rev=v1.1.2#77fa458c7d136cdea2db4637d0031facfe7d38d7"
+version = "1.2.1"
+source = "git+https://github.com/Lagrange-Labs/mapreduce-plonky2.git?rev=1.2.1#196952fe435d637757dda2c02ac3f694eb57cd18"
 dependencies = [
  "anyhow",
  "log",
@@ -6012,8 +6034,8 @@ dependencies = [
 
 [[package]]
 name = "ryhope"
-version = "0.1.0"
-source = "git+https://github.com/Lagrange-Labs/mapreduce-plonky2.git?rev=v1.1.2#77fa458c7d136cdea2db4637d0031facfe7d38d7"
+version = "1.2.1"
+source = "git+https://github.com/Lagrange-Labs/mapreduce-plonky2.git?rev=1.2.1#196952fe435d637757dda2c02ac3f694eb57cd18"
 dependencies = [
  "anyhow",
  "bb8",
@@ -7489,8 +7511,8 @@ checksum = "f1bddf1187be692e79c5ffeab891132dfb0f236ed36a43c7ed39f1165ee20191"
 
 [[package]]
 name = "verifiable-db"
-version = "0.1.0"
-source = "git+https://github.com/Lagrange-Labs/mapreduce-plonky2.git?rev=v1.1.2#77fa458c7d136cdea2db4637d0031facfe7d38d7"
+version = "1.2.1"
+source = "git+https://github.com/Lagrange-Labs/mapreduce-plonky2.git?rev=1.2.1#196952fe435d637757dda2c02ac3f694eb57cd18"
 dependencies = [
  "alloy",
  "anyhow",
diff --git a/Cargo.toml b/Cargo.toml
index 9020b9c..ca2c455 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,11 +3,11 @@ resolver = "2"
 members = ["lgn-auth", "lgn-messages", "lgn-provers", "lgn-worker"]
 
 [workspace.dependencies]
-groth16_framework_v1 = { git = "https://github.com/Lagrange-Labs/mapreduce-plonky2.git", rev = "v1.1.3", package = "groth16_framework" }
-mp2_common = { git = "https://github.com/Lagrange-Labs/mapreduce-plonky2.git", rev = "v1.1.3" }
-mp2_v1 = { git = "https://github.com/Lagrange-Labs/mapreduce-plonky2.git", rev = "v1.1.3" }
-parsil = { git = "https://github.com/Lagrange-Labs/mapreduce-plonky2.git", rev = "v1.1.3" }
-verifiable-db = { git = "https://github.com/Lagrange-Labs/mapreduce-plonky2.git", rev = "v1.1.3" }
+groth16_framework_v1 = { git = "https://github.com/Lagrange-Labs/mapreduce-plonky2.git", rev = "1.2.1", package = "groth16_framework" }
+mp2_common = { git = "https://github.com/Lagrange-Labs/mapreduce-plonky2.git", rev = "1.2.1" }
+mp2_v1 = { git = "https://github.com/Lagrange-Labs/mapreduce-plonky2.git", rev = "1.2.1" }
+parsil = { git = "https://github.com/Lagrange-Labs/mapreduce-plonky2.git", rev = "1.2.1" }
+verifiable-db = { git = "https://github.com/Lagrange-Labs/mapreduce-plonky2.git", rev = "1.2.1" }
 
 anyhow = { version = "1.0" }
 bincode = { version = "1.0" }
diff --git a/lgn-provers/src/params/mod.rs b/lgn-provers/src/params/mod.rs
index 8d797fa..f14b004 100644
--- a/lgn-provers/src/params/mod.rs
+++ b/lgn-provers/src/params/mod.rs
@@ -18,6 +18,9 @@ use tracing::error;
 use tracing::info;
 use tracing::warn;
 
+/// The filename of params checksum hashes
+pub const PARAMS_CHECKSUM_FILENAME: &str = "public_params.hash";
+
 pub struct ParamsLoader;
 
 // Could make configurable but 3600 should be enough
diff --git a/lgn-worker/Cargo.toml b/lgn-worker/Cargo.toml
index 7ce9b9c..80ddac4 100644
--- a/lgn-worker/Cargo.toml
+++ b/lgn-worker/Cargo.toml
@@ -19,17 +19,30 @@ serde_json = { workspace = true }
 checksums = { workspace = true }
 tracing = { workspace = true }
 tracing-subscriber = { workspace = true, features = ["env-filter", "json"] }
-tokio = { workspace = true, features = ["rt-multi-thread", "macros"]  }
-rand = { workspace = true, default-features = false, features = [ "std", "std_rng", "getrandom", "min_const_gen" ]  }
+tokio = { workspace = true, features = ["rt-multi-thread", "macros"] }
+rand = { workspace = true, default-features = false, features = [
+  "std",
+  "std_rng",
+  "getrandom",
+  "min_const_gen",
+] }
 reqwest = { workspace = true, features = ["blocking"] }
 
 # The ethers macro `abigen` needs to import ethers as a crate.
 backtrace = { workspace = true }
-clap = { workspace = true, features = ["derive", "env", "help", "std", "suggestions"] }
+clap = { workspace = true, features = [
+  "derive",
+  "env",
+  "help",
+  "std",
+  "suggestions",
+] }
 config = { workspace = true, features = ["toml"] }
 elliptic-curve = { workspace = true }
 # The ethers macro `abigen` needs to import ethers as a crate.
-ethers = { git = "https://github.com/Lagrange-Labs/ethers-rs", default-features = false, features = [ "rustls" ], branch = "get-proof-0x" }
+ethers = { git = "https://github.com/Lagrange-Labs/ethers-rs", default-features = false, features = [
+  "rustls",
+], branch = "get-proof-0x" }
 jwt = { workspace = true }
 k256 = { workspace = true, features = ["ecdsa", "std"] }
 lazy-static-include = { workspace = true }
@@ -44,6 +57,8 @@ tonic = { workspace = true }
 prost = { workspace = true }
 tokio-stream = { workspace = true }
 
+mp2_common = { workspace = true }
+
 lgn-auth = { path = "../lgn-auth" }
 lgn-messages = { path = "../lgn-messages" }
 lgn-provers = { path = "../lgn-provers" }
diff --git a/lgn-worker/src/config/default.toml b/lgn-worker/src/config/default.toml
index 1db90a8..4f935fe 100644
--- a/lgn-worker/src/config/default.toml
+++ b/lgn-worker/src/config/default.toml
@@ -17,8 +17,7 @@ dir = "./zkmr_params"
 checksum_expected_local_path = "/tmp/expected_checksums.txt"
 # Parameters common directory
 # v1.1.x PPs
-url = "https://pub-fbb5db8dc9ee4e8da9daf13e07d27c24.r2.dev"
-checksum_url = "https://pub-fbb5db8dc9ee4e8da9daf13e07d27c24.r2.dev/public_params.hash"
+params_root_url = "https://pub-a894572689a54c008859f232868fc67d.r2.dev"
 skip_checksum = false
 skip_store = false
 
diff --git a/lgn-worker/src/config/mod.rs b/lgn-worker/src/config/mod.rs
index bd8a948..7d27f3d 100644
--- a/lgn-worker/src/config/mod.rs
+++ b/lgn-worker/src/config/mod.rs
@@ -1,6 +1,7 @@
 use config::FileFormat;
 use lazy_static_include::*;
 use lgn_messages::types::TaskDifficulty;
+use lgn_provers::params::PARAMS_CHECKSUM_FILENAME;
 use redact::Secret;
 use serde_derive::Deserialize;
 use tracing::debug;
@@ -21,8 +22,9 @@ pub(crate) struct Config
 #[derive(Deserialize, Debug, Clone, PartialEq)]
 pub(crate) struct PublicParamsConfig
 {
-    pub(crate) url: String,
-    pub(crate) checksum_url: String,
+    /// the root URL over which we should fetch params.
+    /// The FULL url is constructed from this one and the mp2 version
+    pub(crate) params_root_url: String,
     pub(crate) checksum_expected_local_path: String,
     pub(crate) skip_checksum: bool,
     pub(crate) dir: String,
@@ -39,16 +41,10 @@ impl PublicParamsConfig
     {
         assert!(
             !self
-                .url
+                .params_root_url
                 .is_empty(),
             "URL is required"
         );
-        assert!(
-            !self
-                .checksum_url
-                .is_empty(),
-            "Checksum URL is required"
-        );
         assert!(
             !self
                 .checksum_expected_local_path
@@ -68,6 +64,19 @@ impl PublicParamsConfig
         self.groth16_assets
             .validate();
     }
+
+    /// Build the base URL with path of mp2 version for downloading param files.
+    pub fn params_base_url(&self) -> String
+    {
+        add_mp2_version_path_to_url(&self.params_root_url)
+    }
+
+    /// Build the URL for downloading the checksum file.
+    pub fn checksum_file_url(&self) -> String
+    {
+        let url = self.params_base_url();
+        format!("{url}/{PARAMS_CHECKSUM_FILENAME}")
+    }
 }
 
 #[derive(Deserialize, Debug, Clone, PartialEq)]
@@ -264,3 +273,11 @@ impl Config
             .validate();
     }
 }
+
+/// Add mp2 version as a path to the base URL.
+/// e.g. https://base.com/MP2_VERSION
+fn add_mp2_version_path_to_url(url: &str) -> String
+{
+    let mp2_ver = mp2_common::git::short_git_version();
+    format!("{url}/{mp2_ver}")
+}
diff --git a/lgn-worker/src/main.rs b/lgn-worker/src/main.rs
index 9415a5c..9796ecd 100644
--- a/lgn-worker/src/main.rs
+++ b/lgn-worker/src/main.rs
@@ -272,7 +272,7 @@ async fn maybe_verify_checksums(config: &Config) -> Result<()>
 
     let checksum_url = &config
         .public_params
-        .checksum_url;
+        .checksum_file_url();
     let expected_checksums_file = &config
         .public_params
         .checksum_expected_local_path;
@@ -729,7 +729,7 @@ fn run_with_websocket(config: &Config) -> Result<()>
     // Always download the checksum files, this is needed by the prover constructor
     let checksum_url = &config
         .public_params
-        .checksum_url;
+        .checksum_file_url();
     let expected_checksums_file = &config
         .public_params
         .checksum_expected_local_path;
diff --git a/lgn-worker/src/manager/v1.rs b/lgn-worker/src/manager/v1.rs
index dd7e60b..5019911 100644
--- a/lgn-worker/src/manager/v1.rs
+++ b/lgn-worker/src/manager/v1.rs
@@ -57,8 +57,9 @@ fn register_v1_preprocessor(
 ) -> Result<()>
 {
     let params_config = &config.public_params;
+    let params_base_url = &params_config.params_base_url();
     let preprocessing_prover = lgn_provers::provers::v1::preprocessing::create_prover(
-        &params_config.url,
+        params_base_url,
         &params_config.dir,
         &params_config
             .preprocessing_params
@@ -81,8 +82,9 @@ fn register_v1_query(
 ) -> Result<()>
 {
     let params_config = &config.public_params;
+    let params_base_url = &params_config.params_base_url();
     let query_prover = lgn_provers::provers::v1::query::create_prover(
-        &params_config.url,
+        params_base_url,
         &params_config.dir,
         &params_config
             .query_params
@@ -105,9 +107,10 @@ fn register_v1_groth16(
 ) -> Result<()>
 {
     let params_config = &config.public_params;
+    let params_base_url = &params_config.params_base_url();
     let assets = &params_config.groth16_assets;
     let groth16_prover = lgn_provers::provers::v1::groth16::create_prover(
-        &params_config.url,
+        params_base_url,
         &params_config.dir,
         &assets.circuit_file,
         &params_config.checksum_expected_local_path,
diff --git a/lgn-worker/src/one-shot.rs b/lgn-worker/src/one-shot.rs
index 0f066a7..921eff1 100644
--- a/lgn-worker/src/one-shot.rs
+++ b/lgn-worker/src/one-shot.rs
@@ -109,7 +109,7 @@ fn main() -> Result<()>
 
     let checksum_url = &config
         .public_params
-        .checksum_url;
+        .checksum_file_url();
     let expected_checksums_file = &config
         .public_params
         .checksum_expected_local_path;