diff --git a/platform/mellanox/mlnx-sai.mk b/platform/mellanox/mlnx-sai.mk
index f94f7f38bf..71ef220b23 100644
--- a/platform/mellanox/mlnx-sai.mk
+++ b/platform/mellanox/mlnx-sai.mk
@@ -1,6 +1,6 @@
 # Mellanox SAI
 
-MLNX_SAI_VERSION = SAIRel1.18.0.5-sonic1910
+MLNX_SAI_VERSION = SAIRel1.18.3.1
 
 export MLNX_SAI_VERSION
 
diff --git a/platform/mellanox/mlnx-sai/SAI-Implementation b/platform/mellanox/mlnx-sai/SAI-Implementation
index d7ba478de4..abaa017c65 160000
--- a/platform/mellanox/mlnx-sai/SAI-Implementation
+++ b/platform/mellanox/mlnx-sai/SAI-Implementation
@@ -1 +1 @@
-Subproject commit d7ba478de45033f0a9d27092f98995954bd1d465
+Subproject commit abaa017c65454324772c980c7cc3b80663e2e7ac