diff --git a/moksha-cli/src/main.rs b/moksha-cli/src/main.rs
index bb7d232f..f095309f 100644
--- a/moksha-cli/src/main.rs
+++ b/moksha-cli/src/main.rs
@@ -152,7 +152,7 @@ async fn main() -> anyhow::Result<()> {
         Command::PayOnchain { address, amount } => {
             let info = wallet.get_mint_info().await?;
 
-            if info.nuts.nut15.map_or(true, |nut15| !nut15.supported) {
+            if info.nuts.nut18.map_or(true, |nut18| !nut18.supported) {
                 println!("Error: onchain-payments are not supported by this mint");
                 return Ok(());
             }
@@ -207,13 +207,13 @@ async fn main() -> anyhow::Result<()> {
         Command::Mint { amount } => {
             let info = wallet.get_mint_info().await?;
 
-            let payment_method = info.nuts.nut14.as_ref().map_or_else(
+            let payment_method = info.nuts.nut17.as_ref().map_or_else(
                 || {
                     println!("Only bolt11 minting is supported");
                     PaymentMethod::Bolt11
                 },
-                |nut14| {
-                    if !nut14.supported {
+                |nut17| {
+                    if !nut17.supported {
                         println!("Only bolt11 minting is supported");
                         PaymentMethod::Bolt11
                     } else {
@@ -232,8 +232,8 @@ async fn main() -> anyhow::Result<()> {
 
             let quote = match payment_method {
                 PaymentMethod::BtcOnchain => {
-                    let nut14 = info.nuts.nut14.expect("nut14 is None");
-                    let payment_method = nut14.payment_methods.first().expect("no payment methods");
+                    let nut17 = info.nuts.nut17.expect("nut17 is None");
+                    let payment_method = nut17.payment_methods.first().expect("no payment methods");
                     if amount < payment_method.min_amount {
                         println!(
                             "Amount too low. Minimum amount is {} (sat)",
diff --git a/moksha-core/src/primitives.rs b/moksha-core/src/primitives.rs
index 96dc4e82..0a7e6158 100644
--- a/moksha-core/src/primitives.rs
+++ b/moksha-core/src/primitives.rs
@@ -421,14 +421,14 @@ pub struct Nuts {
     /// DLEQ proofs
     pub nut12: Nut12,
 
-    // TODO remove this if nut-14 and nut-15 are merged
-    #[serde(rename = "14", skip_serializing_if = "Option::is_none")]
+    // TODO remove this if nut-17 and nut-18 are merged
+    #[serde(rename = "17", skip_serializing_if = "Option::is_none")]
     /// minting tokens onchain
-    pub nut14: Option<Nut14>,
+    pub nut17: Option<Nut17>,
 
-    #[serde(rename = "15", skip_serializing_if = "Option::is_none")]
+    #[serde(rename = "18", skip_serializing_if = "Option::is_none")]
     /// melting tokens onchain
-    pub nut15: Option<Nut15>,
+    pub nut18: Option<Nut18>,
 }
 
 #[derive(Deserialize, Serialize, Debug, Clone, PartialEq, Eq, ToSchema)]
@@ -510,7 +510,7 @@ pub struct Nut12 {
 }
 
 #[derive(Deserialize, Serialize, Debug, Clone, PartialEq, Eq, ToSchema)]
-pub struct Nut14 {
+pub struct Nut17 {
     pub supported: bool,
     #[serde(rename = "methods")]
     pub payment_methods: Vec<PaymentMethodConfigBtcOnchain>,
@@ -534,7 +534,7 @@ pub struct PaymentMethodConfigBtcOnchain {
     pub max_amount: u64,
 }
 
-impl Default for Nut14 {
+impl Default for Nut17 {
     fn default() -> Self {
         Self {
             supported: true,
@@ -549,13 +549,13 @@ impl Default for Nut14 {
 }
 
 #[derive(Deserialize, Serialize, Debug, Clone, PartialEq, Eq, ToSchema)]
-pub struct Nut15 {
+pub struct Nut18 {
     pub supported: bool,
     #[serde(rename = "methods")]
     pub payment_methods: Vec<PaymentMethodConfigBtcOnchain>,
 }
 
-impl Default for Nut15 {
+impl Default for Nut18 {
     fn default() -> Self {
         Self {
             supported: true,
diff --git a/moksha-mint/src/config.rs b/moksha-mint/src/config.rs
index 15420a3f..68febecb 100644
--- a/moksha-mint/src/config.rs
+++ b/moksha-mint/src/config.rs
@@ -2,7 +2,7 @@ use std::{env, net::SocketAddr, path::PathBuf, str::FromStr};
 
 use clap::Parser;
 use moksha_core::primitives::{
-    CurrencyUnit, Nut14, Nut15, PaymentMethod, PaymentMethodConfigBtcOnchain,
+    CurrencyUnit, Nut17, Nut18, PaymentMethod, PaymentMethodConfigBtcOnchain,
 };
 use serde::{Deserialize, Serialize};
 
@@ -209,7 +209,7 @@ impl FromStr for BtcOnchainTypeVariant {
     }
 }
 
-impl From<BtcOnchainConfig> for Nut14 {
+impl From<BtcOnchainConfig> for Nut17 {
     fn from(settings: BtcOnchainConfig) -> Self {
         Self {
             supported: true,
@@ -223,7 +223,7 @@ impl From<BtcOnchainConfig> for Nut14 {
     }
 }
 
-impl From<BtcOnchainConfig> for Nut15 {
+impl From<BtcOnchainConfig> for Nut18 {
     fn from(settings: BtcOnchainConfig) -> Self {
         Self {
             supported: true,
diff --git a/moksha-mint/src/routes/default.rs b/moksha-mint/src/routes/default.rs
index 90711938..666cc7d1 100644
--- a/moksha-mint/src/routes/default.rs
+++ b/moksha-mint/src/routes/default.rs
@@ -381,8 +381,8 @@ fn get_nuts(cfg: &MintConfig) -> Nuts {
     let default_config = BtcOnchainConfig::default();
     let config = cfg.btconchain_backend.as_ref().unwrap_or(&default_config);
     Nuts {
-        nut14: Some(config.to_owned().into()),
-        nut15: Some(config.to_owned().into()),
+        nut17: Some(config.to_owned().into()),
+        nut18: Some(config.to_owned().into()),
         ..Nuts::default()
     }
 }
diff --git a/moksha-mint/src/server.rs b/moksha-mint/src/server.rs
index 25e9b187..c74b3fc3 100644
--- a/moksha-mint/src/server.rs
+++ b/moksha-mint/src/server.rs
@@ -28,7 +28,7 @@ use moksha_core::blind::BlindedMessage;
 use moksha_core::blind::BlindedSignature;
 use moksha_core::primitives::{
     CurrencyUnit, GetMeltOnchainResponse, KeyResponse, KeysResponse, MintInfoResponse,
-    MintLegacyInfoResponse, Nut10, Nut11, Nut12, Nut14, Nut15, Nut4, Nut5, Nut7, Nut8, Nut9, Nuts,
+    MintLegacyInfoResponse, Nut10, Nut11, Nut12, Nut17, Nut18, Nut4, Nut5, Nut7, Nut8, Nut9, Nuts,
     PaymentMethod, PostMeltBolt11Request, PostMeltBolt11Response, PostMeltQuoteBolt11Request,
     PostMeltQuoteBolt11Response, PostMeltQuoteOnchainRequest, PostMeltQuoteOnchainResponse,
     PostMintBolt11Request, PostMintBolt11Response, PostMintQuoteBolt11Request,
@@ -151,8 +151,8 @@ pub async fn run_server(mint: Mint) -> anyhow::Result<()> {
         PostSwapRequest,
         PostSwapResponse,
         P2SHScript,
-        Nut14,
-        Nut15,
+        Nut17,
+        Nut18,
         PostMintQuoteOnchainRequest,
         PostMintQuoteOnchainResponse,
         PostMeltQuoteOnchainRequest,