diff --git a/dbs-write-ops/src/bc.rs b/dbs-write-ops/src/bc.rs
index 2c4892f3a7e3281fc5c7bd5cfef93d307a926c7d..968edcf3411321cb74cef790a23d2545cc3cf04a 100644
--- a/dbs-write-ops/src/bc.rs
+++ b/dbs-write-ops/src/bc.rs
@@ -18,7 +18,7 @@ mod txs;
 mod uds;
 
 use crate::*;
-use duniter_dbs::databases::bc_v2::BcV2DbWritable;
+use duniter_dbs::{databases::bc_v2::BcV2DbWritable, CurrencyParamsDbV2};
 
 pub fn apply_block<B: Backend>(
     bc_db: &duniter_dbs::databases::bc_v2::BcV2Db<B>,
@@ -36,6 +36,7 @@ pub fn apply_block<B: Backend>(
         bc_db.uids_index_write(),
         bc_db.utxos_write(),
         bc_db.consumed_utxos_write(),
+        bc_db.currency_params_write(),
     )
         .write(
             |(
@@ -47,7 +48,17 @@ pub fn apply_block<B: Backend>(
                 mut uids_index,
                 mut utxos,
                 mut consumed_utxos,
+                mut currency_params,
             )| {
+                if let Some(params) = block.currency_parameters() {
+                    currency_params.upsert(
+                        (),
+                        CurrencyParamsDbV2 {
+                            currency_name: block.currency_name(),
+                            params,
+                        },
+                    );
+                }
                 blocks_meta.upsert(U32BE(block.number().0), block_meta);
                 identities::update_identities::<B>(&block, &mut identities)?;
                 for idty in block.identities() {
@@ -106,6 +117,7 @@ pub fn revert_block<B: Backend>(
         bc_db.uids_index_write(),
         bc_db.utxos_write(),
         bc_db.consumed_utxos_write(),
+        bc_db.currency_params_write(),
     )
         .write(
             |(
@@ -117,7 +129,11 @@ pub fn revert_block<B: Backend>(
                 mut uids_index,
                 mut utxos,
                 mut consumed_utxos,
+                mut currency_params,
             )| {
+                if block.number() == BlockNumber(0) {
+                    currency_params.remove(());
+                }
                 txs::revert_txs::<B>(
                     block.number(),
                     block.transactions(),