diff --git a/pd/src/m_pd.h b/pd/src/m_pd.h
index 557800880770486d4f8bef2c0e331b1c5020f429..41d3690494f97ef7584c0a52ae0a7199e344a788 100644
--- a/pd/src/m_pd.h
+++ b/pd/src/m_pd.h
@@ -14,7 +14,7 @@ extern "C" {
 #define PD_MINOR_VERSION 48
 #define PD_BUGFIX_VERSION 0
 #define PD_TEST_VERSION ""
-#define PD_L2ORK_VERSION "2.3.3"
+#define PD_L2ORK_VERSION "2.4.0"
 #define PDL2ORK
 extern int pd_compatibilitylevel;   /* e.g., 43 for pd 0.43 compatibility */