diff --git a/src/commonMain/kotlin/io/modelcontextprotocol/kotlin/sdk/types.kt b/src/commonMain/kotlin/io/modelcontextprotocol/kotlin/sdk/types.kt
index 077b3f63..57a5f803 100644
--- a/src/commonMain/kotlin/io/modelcontextprotocol/kotlin/sdk/types.kt
+++ b/src/commonMain/kotlin/io/modelcontextprotocol/kotlin/sdk/types.kt
@@ -18,11 +18,11 @@ import kotlin.concurrent.atomics.ExperimentalAtomicApi
 import kotlin.concurrent.atomics.incrementAndFetch
 import kotlin.jvm.JvmInline
 
-public const val LATEST_PROTOCOL_VERSION: String = "2024-11-05"
+public const val LATEST_PROTOCOL_VERSION: String = "2025-03-26"
 
 public val SUPPORTED_PROTOCOL_VERSIONS: Array<String> = arrayOf(
     LATEST_PROTOCOL_VERSION,
-    "2024-10-07",
+    "2024-11-05",
 )
 
 public const val JSONRPC_VERSION: String = "2.0"
@@ -1250,7 +1250,7 @@ public class CallToolResult(
 ) : CallToolResultBase
 
 /**
- * [CallToolResult] extended with backwards compatibility to protocol version 2024-10-07.
+ * [CallToolResult] extended with backwards compatibility to protocol version 2024-11-05.
  */
 @Serializable
 public class CompatibilityCallToolResult(
diff --git a/src/commonTest/kotlin/io/modelcontextprotocol/kotlin/sdk/TypesTest.kt b/src/commonTest/kotlin/io/modelcontextprotocol/kotlin/sdk/TypesTest.kt
index c87d2bde..819db328 100644
--- a/src/commonTest/kotlin/io/modelcontextprotocol/kotlin/sdk/TypesTest.kt
+++ b/src/commonTest/kotlin/io/modelcontextprotocol/kotlin/sdk/TypesTest.kt
@@ -12,14 +12,14 @@ class TypesTest {
     @Test
     fun `should have correct latest protocol version`() {
         assertNotEquals("", LATEST_PROTOCOL_VERSION)
-        assertEquals("2024-11-05", LATEST_PROTOCOL_VERSION)
+        assertEquals("2025-03-26", LATEST_PROTOCOL_VERSION)
     }
 
     @Test
     fun `should have correct supported protocol versions`() {
         assertIs<Array<String>>(SUPPORTED_PROTOCOL_VERSIONS)
         assertTrue(SUPPORTED_PROTOCOL_VERSIONS.contains(LATEST_PROTOCOL_VERSION))
-        assertTrue(SUPPORTED_PROTOCOL_VERSIONS.contains("2024-10-07"))
+        assertTrue(SUPPORTED_PROTOCOL_VERSIONS.contains("2024-11-05"))
         assertEquals(2, SUPPORTED_PROTOCOL_VERSIONS.size)
     }
 
diff --git a/src/commonTest/kotlin/io/modelcontextprotocol/kotlin/sdk/client/TypesTest.kt b/src/commonTest/kotlin/io/modelcontextprotocol/kotlin/sdk/client/TypesTest.kt
deleted file mode 100644
index 1714ded6..00000000
--- a/src/commonTest/kotlin/io/modelcontextprotocol/kotlin/sdk/client/TypesTest.kt
+++ /dev/null
@@ -1,49 +0,0 @@
-package io.modelcontextprotocol.kotlin.sdk.client
-
-import io.modelcontextprotocol.kotlin.sdk.JSONRPCMessage
-import io.modelcontextprotocol.kotlin.sdk.Request
-import io.modelcontextprotocol.kotlin.sdk.shared.McpJson
-import kotlin.test.Test
-
-class TypesTest {
-
-    @Test
-    fun testRequestResult() {
-        val message =
-            "{\"result\":{\"protocolVersion\":\"2024-11-05\",\"capabilities\":{\"tools\":{\"listChanged\":true},\"resources\":{}},\"serverInfo\":{\"name\":\"jetbrains/proxy\",\"version\":\"0.1.0\"}},\"jsonrpc\":\"2.0\",\"id\":1}"
-        McpJson.decodeFromString<JSONRPCMessage>(message)
-    }
-
-    @Test
-    fun testRequestError() {
-        val message =
-            "{\"method\":\"initialize\", \"protocolVersion\":\"2024-11-05\",\"capabilities\":{\"experimental\":{},\"sampling\":{}},\"clientInfo\":{\"name\":\"test client\",\"version\":\"1.0\"},\"_meta\":{}}"
-        McpJson.decodeFromString<Request>(message)
-    }
-
-    @Test
-    fun testJSONRPCMessage() {
-        val line = "{\"result\":{\"content\":[{\"type\":\"text\"}],\"isError\":false},\"jsonrpc\":\"2.0\",\"id\":4}"
-        McpJson.decodeFromString<JSONRPCMessage>(line)
-    }
-
-    @Test
-    fun testJSONRPCMessageWithStringId() {
-        val line = """
-            {
-              "jsonrpc": "2.0",
-              "method": "initialize",
-              "id": "ebf9f64a-0",
-              "params": {
-                "protocolVersion": "2024-11-05",
-                "capabilities": {},
-                "clientInfo": {
-                  "name": "mcp-java-client",
-                  "version": "0.2.0"
-                }
-              }
-            }
-        """.trimIndent()
-        McpJson.decodeFromString<JSONRPCMessage>(line)
-    }
-}
\ No newline at end of file