diff --git a/platform/mellanox/fw.mk b/platform/mellanox/fw.mk
index 72425644a5..f6b2a86a7b 100644
--- a/platform/mellanox/fw.mk
+++ b/platform/mellanox/fw.mk
@@ -2,12 +2,12 @@
 
 MLNX_FW_BASE_URL = $(MLNX_SDK_BASE_URL)
 
-MLNX_SPC_FW_VERSION = 13.2000.1420
+MLNX_SPC_FW_VERSION = 13.2000.1634
 MLNX_SPC_FW_FILE = fw-SPC-rel-$(subst .,_,$(MLNX_SPC_FW_VERSION))-EVB.mfa
 $(MLNX_SPC_FW_FILE)_URL = $(MLNX_FW_BASE_URL)/$(MLNX_SPC_FW_FILE)
 SONIC_ONLINE_FILES += $(MLNX_SPC_FW_FILE)
 
-MLNX_SPC2_FW_VERSION = 29.2000.1420
+MLNX_SPC2_FW_VERSION = 29.2000.1634
 MLNX_SPC2_FW_FILE = fw-SPC2-rel-$(subst .,_,$(MLNX_SPC2_FW_VERSION))-EVB.mfa
 $(MLNX_SPC2_FW_FILE)_URL = $(MLNX_FW_BASE_URL)/$(MLNX_SPC2_FW_FILE)
 SONIC_ONLINE_FILES += $(MLNX_SPC2_FW_FILE)
diff --git a/platform/mellanox/sdk.mk b/platform/mellanox/sdk.mk
index 1c5b104280..3aff852318 100644
--- a/platform/mellanox/sdk.mk
+++ b/platform/mellanox/sdk.mk
@@ -1,5 +1,5 @@
-MLNX_SDK_BASE_URL = https://github.com/Mellanox/SAI-Implementation/raw/ee4aab2c7e90c10c52925ba72d43eda393b50634/sdk
-MLNX_SDK_VERSION = 4.3.1420
+MLNX_SDK_BASE_URL = https://github.com/Mellanox/SAI-Implementation/raw/f4bc0f92f729cedf4d65a19563f61db23acb7763/sdk
+MLNX_SDK_VERSION = 4.3.1634
 MLNX_SDK_ISSU_VERSION = 101
 
 MLNX_SDK_DEB_VERSION = $(subst _,.,$(MLNX_SDK_VERSION))