diff --git a/features/consolidated_misc.feature b/features/consolidated_misc.feature
index 7fc34fa29..e8e485313 100644
--- a/features/consolidated_misc.feature
+++ b/features/consolidated_misc.feature
@@ -223,20 +223,20 @@ Feature: Consolidated Misc
 
   Scenario: Negotiate supported version succeeds
     Given a new A2aVersionNegotiator
-    When I negotiate version "1.0"
-    Then the negotiated version should be "1.0"
+    When I negotiate version "2.0"
+    Then the negotiated version should be "2.0"
 
 
   Scenario: Negotiate unsupported version raises error
     Given a new A2aVersionNegotiator
-    When I try to negotiate version "2.0"
+    When I try to negotiate version "99.0"
     Then an A2aVersionMismatchError should be raised
-    And the error requested_version should be "2.0"
+    And the error requested_version should be "99.0"
 
 
   Scenario: is_supported returns True for valid version
     Given a new A2aVersionNegotiator
-    Then version "1.0" should be supported
+    Then version "2.0" should be supported
 
 
   Scenario: is_supported returns False for invalid version
@@ -246,7 +246,7 @@ Feature: Consolidated Misc
 
   Scenario: get_current returns current version
     Given a new A2aVersionNegotiator
-    Then the current version should be "1.0"
+    Then the current version should be "2.0"
 
     # -----------------------------------------------------------------------
     # A2aRequest model validation
@@ -719,24 +719,24 @@ Feature: Consolidated Misc
     # --- A2A version negotiation ---
 
 
-  Scenario: M6 smoke A2A version negotiation accepts 1.0
+  Scenario: M6 smoke A2A version negotiation accepts 2.0
     Given a m6 smoke test runner
     And a m6 smoke A2A local facade
-    When I m6 smoke negotiate A2A version "1.0"
-    Then the m6 smoke negotiated version should be "1.0"
+    When I m6 smoke negotiate A2A version "2.0"
+    Then the m6 smoke negotiated version should be "2.0"
 
 
   Scenario: M6 smoke A2A version negotiation rejects unsupported
     Given a m6 smoke test runner
     And a m6 smoke A2A local facade
-    When I m6 smoke negotiate A2A version "2.0"
+    When I m6 smoke negotiate A2A version "99.0"
     Then the m6 smoke facade should raise A2aVersionMismatchError
 
 
   Scenario: M6 smoke A2A version is_supported returns correct result
     Given a m6 smoke test runner
     And a m6 smoke A2A local facade
-    When I m6 smoke check if version "1.0" is supported
+    When I m6 smoke check if version "2.0" is supported
     Then the m6 smoke version support should be true
     When I m6 smoke check if version "99.0" is supported
     Then the m6 smoke version support should be false
diff --git a/src/cleveragents/a2a/versioning.py b/src/cleveragents/a2a/versioning.py
index 6547af6fe..6d73aa2b8 100644
--- a/src/cleveragents/a2a/versioning.py
+++ b/src/cleveragents/a2a/versioning.py
@@ -17,8 +17,8 @@ logger: structlog.stdlib.BoundLogger = structlog.get_logger(__name__)
 class A2aVersionNegotiator:
     """Negotiates A2A protocol versions."""
 
-    CURRENT_VERSION: str = "1.0"
-    SUPPORTED_VERSIONS: tuple[str, ...] = ("1.0",)
+    CURRENT_VERSION: str = "2.0"
+    SUPPORTED_VERSIONS: tuple[str, ...] = ("2.0",)
 
     def negotiate(self, requested: str) -> str:
         """Return *requested* if supported, otherwise raise.