diff --git a/runtime/common/src/constants.rs b/runtime/common/src/constants.rs
index fc3037a88beebd4757db116a097822ff588a345f..135e5bad62db4acbad6a182b07e128ca31d5aa24 100644
--- a/runtime/common/src/constants.rs
+++ b/runtime/common/src/constants.rs
@@ -69,7 +69,7 @@ pub fn block_weights(
     expected_block_weight: Weight,
     normal_ratio: sp_arithmetic::Perbill,
 ) -> frame_system::limits::BlockWeights {
-    let base_weight = DbWeight::get().reads(1) + DbWeight::get().writes(1);
+    let base_weight = crate::weights::extrinsic_weights::ExtrinsicBaseWeight::get();
     let normal_weight = normal_ratio * expected_block_weight;
     frame_system::limits::BlockWeights::builder()
         .base_block(crate::weights::block_weights::BlockExecutionWeight::get())
diff --git a/runtime/common/src/weights.rs b/runtime/common/src/weights.rs
index 4ba7c758564d5a17cd3c2a1a9cd81176196e8262..952423d90b95fdfacfd4f13e4faa6432b0b1e67c 100644
--- a/runtime/common/src/weights.rs
+++ b/runtime/common/src/weights.rs
@@ -20,6 +20,7 @@
 #![allow(clippy::unnecessary_cast)]
 
 pub mod block_weights;
+pub mod extrinsic_weights;
 pub mod frame_system;
 pub mod pallet_babe;
 pub mod pallet_balances;
diff --git a/runtime/common/src/weights/extrinsic_weights.rs b/runtime/common/src/weights/extrinsic_weights.rs
new file mode 100644
index 0000000000000000000000000000000000000000..de39f7a43019778c932c81b4e6acf7c30aa4f4ac
--- /dev/null
+++ b/runtime/common/src/weights/extrinsic_weights.rs
@@ -0,0 +1,63 @@
+
+//! THIS FILE WAS AUTO-GENERATED USING THE SUBSTRATE BENCHMARK CLI VERSION 4.0.0-dev
+//! DATE: 2023-05-19 (Y/M/D)
+//! HOSTNAME: `benjamin-xps139380`, CPU: `Intel(R) Core(TM) i7-8565U CPU @ 1.80GHz`
+//!
+//! SHORT-NAME: `extrinsic`, LONG-NAME: `ExtrinsicBase`, RUNTIME: `Development`
+//! WARMUPS: `10`, REPEAT: `100`
+//! WEIGHT-PATH: `runtime/common/src/weights/`
+//! WEIGHT-METRIC: `Average`, WEIGHT-MUL: `1.0`, WEIGHT-ADD: `0`
+
+// Executed Command:
+//   target/release/duniter
+//   benchmark
+//   overhead
+//   --chain=gdev-benchmark
+//   --execution=wasm
+//   --wasm-execution=compiled
+//   --weight-path=runtime/common/src/weights/
+//   --warmup=10
+
+use sp_core::parameter_types;
+use sp_weights::{constants::WEIGHT_PER_NANOS, Weight};
+
+parameter_types! {
+	/// Time to execute a NO-OP extrinsic, for example `System::remark`.
+	/// Calculated by multiplying the *Average* with `1.0` and adding `0`.
+	///
+	/// Stats nanoseconds:
+	///   Min, Max: 203_855, 206_882
+	///   Average:  204_580
+	///   Median:   204_521
+	///   Std-Dev:  405.03
+	///
+	/// Percentiles nanoseconds:
+	///   99th: 205_581
+	///   95th: 205_130
+	///   75th: 204_772
+	pub const ExtrinsicBaseWeight: Weight = WEIGHT_PER_NANOS.saturating_mul(204_580);
+}
+
+#[cfg(test)]
+mod test_weights {
+	use sp_weights::constants;
+
+	/// Checks that the weight exists and is sane.
+	// NOTE: If this test fails but you are sure that the generated values are fine,
+	// you can delete it.
+	#[test]
+	fn sane() {
+		let w = super::ExtrinsicBaseWeight::get();
+
+		// At least 10 µs.
+		assert!(
+			w.ref_time() >= 10u64 * constants::WEIGHT_PER_MICROS.ref_time(),
+			"Weight should be at least 10 µs."
+		);
+		// At most 1 ms.
+		assert!(
+			w.ref_time() <= constants::WEIGHT_PER_MILLIS.ref_time(),
+			"Weight should be at most 1 ms."
+		);
+	}
+}