diff --git a/src/networks/butterflynet/mod.rs b/src/networks/butterflynet/mod.rs
index 59ddd242b572..34a1d196012f 100644
--- a/src/networks/butterflynet/mod.rs
+++ b/src/networks/butterflynet/mod.rs
@@ -106,7 +106,7 @@ pub static HEIGHT_INFOS: LazyLock<HashMap<Height, HeightInfo>> = LazyLock::new(|
         make_height!(Teep, 50, get_bundle_cid("v16.0.1")),
         make_height!(Tock, 100),
         make_height!(GoldenWeek, 200, get_bundle_cid("v17.0.0")),
-        make_height!(Xxx, i64::MAX),
+        make_height!(FireHorse, i64::MAX),
     ])
 });
 
diff --git a/src/networks/calibnet/mod.rs b/src/networks/calibnet/mod.rs
index 7390553b315a..642c8136eed1 100644
--- a/src/networks/calibnet/mod.rs
+++ b/src/networks/calibnet/mod.rs
@@ -95,7 +95,7 @@ pub static HEIGHT_INFOS: LazyLock<HashMap<Height, HeightInfo>> = LazyLock::new(|
         make_height!(TockFix, 2_558_014, get_bundle_cid("v16.0.1")),
         // Wed 10 Sep 23:00:00 UTC 2025
         make_height!(GoldenWeek, 3_007_294, get_bundle_cid("v17.0.0")),
-        make_height!(Xxx, i64::MAX),
+        make_height!(FireHorse, i64::MAX),
     ])
 });
 
diff --git a/src/networks/devnet/mod.rs b/src/networks/devnet/mod.rs
index 2926f204df04..d87f8bba1d4c 100644
--- a/src/networks/devnet/mod.rs
+++ b/src/networks/devnet/mod.rs
@@ -165,8 +165,8 @@ pub static HEIGHT_INFOS: LazyLock<HashMap<Height, HeightInfo>> = LazyLock::new(|
             get_bundle_cid("v17.0.0")
         ),
         make_height!(
-            Xxx,
-            get_upgrade_height_from_env("FOREST_XXX_HEIGHT").unwrap_or(9999999999)
+            FireHorse,
+            get_upgrade_height_from_env("FOREST_FIREHORSE_HEIGHT").unwrap_or(9999999999)
         ),
     ])
 });
diff --git a/src/networks/mainnet/mod.rs b/src/networks/mainnet/mod.rs
index 6440bdfaec53..27f5e43fb34a 100644
--- a/src/networks/mainnet/mod.rs
+++ b/src/networks/mainnet/mod.rs
@@ -92,7 +92,7 @@ pub static HEIGHT_INFOS: LazyLock<HashMap<Height, HeightInfo>> = LazyLock::new(|
         make_height!(Tock, 4_878_840 + EPOCHS_IN_DAY * 90),
         // Wed 24 Sep 23:00:00 UTC 2025
         make_height!(GoldenWeek, 5_348_280, get_bundle_cid("v17.0.0")),
-        make_height!(Xxx, i64::MAX),
+        make_height!(FireHorse, i64::MAX),
     ])
 });
 
diff --git a/src/networks/mod.rs b/src/networks/mod.rs
index 418236149722..b564f0d28655 100644
--- a/src/networks/mod.rs
+++ b/src/networks/mod.rs
@@ -176,7 +176,7 @@ pub enum Height {
     Tock,
     TockFix,
     GoldenWeek,
-    Xxx,
+    FireHorse,
 }
 
 impl From<Height> for NetworkVersion {
@@ -217,7 +217,7 @@ impl From<Height> for NetworkVersion {
             Height::Tock => NetworkVersion::V26,
             Height::TockFix => NetworkVersion::V26,
             Height::GoldenWeek => NetworkVersion::V27,
-            Height::Xxx => NetworkVersion::V28,
+            Height::FireHorse => NetworkVersion::V28,
         }
     }
 }
@@ -665,7 +665,7 @@ mod tests {
             Height::TukTuk,
             Height::Teep,
             Height::GoldenWeek,
-            Height::Xxx,
+            Height::FireHorse,
         ];
 
         for height in &REQUIRED_HEIGHTS {
diff --git a/src/rpc/methods/state.rs b/src/rpc/methods/state.rs
index aae393bb4c63..55feef3a7862 100644
--- a/src/rpc/methods/state.rs
+++ b/src/rpc/methods/state.rs
@@ -3278,7 +3278,7 @@ impl TryFrom<&ChainConfig> for ForkUpgradeParams {
             upgrade_teep_height: get_height(Teep)?,
             upgrade_tock_height: get_height(Tock)?,
             upgrade_golden_week_height: get_height(GoldenWeek)?,
-            //upgrade_xxx_height: get_height(Xxx)?,
+            //upgrade_firehorse_height: get_height(FireHorse)?,
         })
     }
 }
diff --git a/src/state_migration/nv28/migration.rs b/src/state_migration/nv28/migration.rs
index 8f3c9e468d4b..39511fc1897c 100644
--- a/src/state_migration/nv28/migration.rs
+++ b/src/state_migration/nv28/migration.rs
@@ -63,7 +63,7 @@ where
 {
     let new_manifest_cid = chain_config
         .height_infos
-        .get(&Height::Xxx)
+        .get(&Height::FireHorse)
         .context("no height info for network version NV28")?
         .bundle
         .as_ref()
diff --git a/src/utils/misc/logo.rs b/src/utils/misc/logo.rs
index c6f94708803b..fe1c468306dc 100644
--- a/src/utils/misc/logo.rs
+++ b/src/utils/misc/logo.rs
@@ -32,7 +32,7 @@ pub fn reveal_upgrade_logo(network_version: NetworkVersion) {
         NetworkVersion::V24 => reveal_tuktuk_upgrade(),
         NetworkVersion::V25 => reveal_teep_upgrade(),
         NetworkVersion::V27 => reveal_golden_week_upgrade(),
-        NetworkVersion::V28 => reveal_xxx_upgrade(),
+        NetworkVersion::V28 => reveal_fire_horse_upgrade(),
         _ => reveal_three_trees(),
     }
 }
@@ -241,11 +241,15 @@ fn reveal_golden_week_upgrade() {
     );
 }
 
-/// Reveals the `Xxx` upgrade logo.
-fn reveal_xxx_upgrade() {
+fn reveal_fire_horse_upgrade() {
     info!(
         r###"
-    Xxx!
+           ,--,
+     _ ___/ /\|
+ ,;'( )__, )  ~
+//  //   '--; 
+'   \     | ^
+     ^    ^
         "###
     );
 }