diff --git a/recipes-bsp/serdes-diag/serdes-diag-rtos_git.bb b/recipes-bsp/serdes-diag/serdes-diag-rtos_git.bb
index 8435fce5..b0ab7598 100644
--- a/recipes-bsp/serdes-diag/serdes-diag-rtos_git.bb
+++ b/recipes-bsp/serdes-diag/serdes-diag-rtos_git.bb
@@ -13,14 +13,14 @@ SERDES_DIAG_GIT_PROTOCOL = "git"
 SERDES_DIAG_GIT_BRANCH = "master"
 SERDES_DIAG_GIT_DESTSUFFIX = "git/ti/diag/serdes_diag"
 
-# Below commit ID corresponds to "DEV.DIAG_SERDES_SB.01.00.00.12A"
-SERDES_DIAG_SRCREV = "121c3bf0a20493a32f3f0297a370f2994cd288ff"
+# Below commit ID corresponds to "DEV.DIAG_SERDES_SB.01.00.00.12B"
+SERDES_DIAG_SRCREV = "d56c1dd1594565d4b445edd44619caa8e7a63373"
 
 BRANCH = "${SERDES_DIAG_GIT_BRANCH}"
 SRC_URI = "${SERDES_DIAG_GIT_URI};destsuffix=${SERDES_DIAG_GIT_DESTSUFFIX};protocol=${SERDES_DIAG_GIT_PROTOCOL};branch=${BRANCH}"
 
 SRCREV = "${SERDES_DIAG_SRCREV}"
-PV = "01.00.00.12A"
+PV = "01.00.00.12B"
 PR = "r0"
 
 S = "${WORKDIR}/${SERDES_DIAG_GIT_DESTSUFFIX}"