diff --git a/packages/types/src/extrinsic/Extrinsic.spec.ts b/packages/types/src/extrinsic/Extrinsic.spec.ts
index b76d97d8a20..09f2b216d2a 100644
--- a/packages/types/src/extrinsic/Extrinsic.spec.ts
+++ b/packages/types/src/extrinsic/Extrinsic.spec.ts
@@ -48,4 +48,18 @@ describe('Extrinsic', (): void => {
       expect(extrinsic.toPrimitive()).toEqual({ method: { args: { dest: { id: '5DiuK2zR4asj2CEh77SKtUgTswTLkD8eiAKrByg5G3wL5w9b' }, value: 104560923320000 }, callIndex: '0x0600' }, signature: { era: { mortalEra: [1024, 186] }, nonce: 68, signature: { ed25519: '0xd99ffe3e610ad234e1414bda5831395a6df9098bf80b01561ce89a5065ae89d5c10e1619c6c99131b0bea4fb73ef04d07c07770e2ae9df5c325c331769ccb300' }, signer: { id: '5Hn8KKEp8qruCGWaN9MEsjTs4FXB4wv9xn7g1RWkNeKKNXCr' }, tip: 30000000000 } });
     });
   });
+
+  describe('V5', () => {
+    it('Signed Extrinsic', () => {
+      registry.setSignedExtensions(fallbackExtensions);
+
+      const extrinsic = new Extrinsic(
+        registry,
+        '0x51028500d43593c715fdd31c61141abd04a99fd6822c8558854ccde39a5684e7a56da27d01fe54549be20bf992bc41433b698e2efd2196d54d1192ce851592369811c023079e6e1c334d546549e7cc0e71f5e3982a42ea832727ffdaca62af7f1a20fc428a00a500000000000603008eaf04151687736326c9fea17e25fc5287613693c912909cb226aa4794f26a480b00a0724e1809',
+        { preamble: 'signed', version: 5 }
+      );
+
+      expect(extrinsic.signer.toHuman()).toEqual('HNZata7iMYWmk5RvZRTiAsSDhV8366zq2YGb3tLH5Upf74F');
+    });
+  });
 });
diff --git a/packages/types/src/extrinsic/Extrinsic.ts b/packages/types/src/extrinsic/Extrinsic.ts
index 9e886694cff..3c3e37a4ac7 100644
--- a/packages/types/src/extrinsic/Extrinsic.ts
+++ b/packages/types/src/extrinsic/Extrinsic.ts
@@ -92,6 +92,10 @@ function decodeU8a (registry: Registry, value: Uint8Array, version: number, prea
 
   const data = value.subarray(offset, total);
 
+  if (version === 5) {
+    return newFromValue(registry, data.subarray(2), data[0], preamble);
+  }
+
   return newFromValue(registry, data.subarray(1), data[0], preamble);
 }