diff --git a/libraries/chain/hardfork.d/GPOS.hf b/libraries/chain/hardfork.d/GPOS.hf
index 8e93f80f..991c35ac 100644
--- a/libraries/chain/hardfork.d/GPOS.hf
+++ b/libraries/chain/hardfork.d/GPOS.hf
@@ -1,4 +1,5 @@
-// GPOS HARDFORK Monday, 31 Dec 2019 00:00:00 GMT
+// GPOS HARDFORK Monday, 31 Dec 2019 00:00:00 GMT - 1577750400
+// GPOS HARDFORK Monday, March 30, 2020 2:00:00 PM - 1585569600
 #ifndef HARDFORK_GPOS_TIME
-#define HARDFORK_GPOS_TIME (fc::time_point_sec( 1577750400 ))
+#define HARDFORK_GPOS_TIME (fc::time_point_sec( 1585569600 ))
 #endif
diff --git a/libraries/chain/hardfork.d/SON.hf b/libraries/chain/hardfork.d/SON.hf
index 5c4e1e76..b3947a75 100644
--- a/libraries/chain/hardfork.d/SON.hf
+++ b/libraries/chain/hardfork.d/SON.hf
@@ -1,6 +1,7 @@
 // SON HARDFORK Wednesday, January 1, 2020 12:00:00 AM - 1577836800
+// SON HARDFORK Monday, March 30, 2020 3:00:00 PM - 1585573200
 // SON HARDFORK Monday, September 21, 2020 1:43:11 PM - 1600695791
 #ifndef HARDFORK_SON_TIME
 #include <ctime>
-#define HARDFORK_SON_TIME (fc::time_point_sec( 1577836800 ))
+#define HARDFORK_SON_TIME (fc::time_point_sec( 1585573200 ))
 #endif