diff --git a/MicroCore-2.4.0.tar.bz2 b/MicroCore-2.4.0.tar.bz2
new file mode 100644
index 0000000..24ca2c7
Binary files /dev/null and b/MicroCore-2.4.0.tar.bz2 differ
diff --git a/package_MCUdude_MicroCore_index.json b/package_MCUdude_MicroCore_index.json
index b5d6085..755ff6c 100644
--- a/package_MCUdude_MicroCore_index.json
+++ b/package_MCUdude_MicroCore_index.json
@@ -344,6 +344,38 @@
               "version": "1.3.0"
             }
           ]
+        },
+        {
+          "name": "MicroCore",
+          "architecture": "avr",
+          "version": "2.4.0",
+          "category": "Contributed",
+          "url": "https://MCUdude.github.io/MicroCore/MicroCore-2.4.0.tar.bz2",
+          "archiveFileName": "MicroCore-2.4.0.tar.bz2",
+          "checksum": "SHA-256:31346b22c71d259f5bffc639a6714ec9add535aaeb6fa0f5fee8b58519c08e18",
+          "size": "185805",
+          "boards": [
+            {
+              "name": "ATtiny13/A"
+            }
+          ],
+          "toolsDependencies": [
+            {
+              "packager": "arduino",
+              "name": "avr-gcc",
+              "version": "7.3.0-atmel3.6.1-arduino7"
+            },
+            {
+              "packager": "MicroCore",
+              "name": "avrdude",
+              "version": "7.2-arduino.1"
+            },
+            {
+              "packager": "arduino",
+              "name": "arduinoOTA",
+              "version": "1.3.0"
+            }
+          ]
         }
       ],
       "tools": [