diff --git a/include/RED4ext/Api/Runtime.hpp b/include/RED4ext/Api/Runtime.hpp
index 9cccddf8d..a925bb08c 100644
--- a/include/RED4ext/Api/Runtime.hpp
+++ b/include/RED4ext/Api/Runtime.hpp
@@ -23,6 +23,7 @@
 #define RED4EXT_RUNTIME_2_12_HOTFIX_1 RED4EXT_V0_RUNTIME_2_12_HOTFIX_1
 #define RED4EXT_RUNTIME_2_13 RED4EXT_V0_RUNTIME_2_13
 #define RED4EXT_RUNTIME_2_20 RED4EXT_V0_RUNTIME_2_20
+#define RED4EXT_RUNTIME_2_21 RED4EXT_V0_RUNTIME_2_21
 
 /**
  * @brief Supports all game versions.
diff --git a/include/RED4ext/Api/v0/Runtime.hpp b/include/RED4ext/Api/v0/Runtime.hpp
index 3d15b393f..35533d6bb 100644
--- a/include/RED4ext/Api/v0/Runtime.hpp
+++ b/include/RED4ext/Api/v0/Runtime.hpp
@@ -33,6 +33,7 @@
 #define RED4EXT_V0_RUNTIME_2_12_HOTFIX_1 RED4EXT_V0_FILEVER(3, 0, 76, 64179)
 #define RED4EXT_V0_RUNTIME_2_13 RED4EXT_V0_FILEVER(3, 0, 77, 64623)
 #define RED4EXT_V0_RUNTIME_2_20 RED4EXT_V0_FILEVER(3, 0, 78, 41888)
+#define RED4EXT_V0_RUNTIME_2_21 RED4EXT_V0_FILEVER(3, 0, 78, 57301)
 
 /**
  * @brief Supports all game versions.
@@ -45,4 +46,4 @@
 /*
  * @brief The latest game version.
  */
-#define RED4EXT_V0_RUNTIME_LATEST RED4EXT_V0_RUNTIME_2_20
+#define RED4EXT_V0_RUNTIME_LATEST RED4EXT_V0_RUNTIME_2_21