diff --git a/scripts/test.sh b/scripts/test.sh
index 0c5cebc9b..99bdf1468 100755
--- a/scripts/test.sh
+++ b/scripts/test.sh
@@ -68,7 +68,7 @@ build_wolfssl()
 
 build_tss2()
 {
-	TSS2_REV=2.4.2
+	TSS2_REV=2.4.3
 	TSS2_PKG=tpm2-tss-$TSS2_REV
 	TSS2_DIR=$DEPS_BUILD_DIR/$TSS2_PKG
 	TSS2_SRC=https://github.com/tpm2-software/tpm2-tss/releases/download/$TSS2_REV/$TSS2_PKG.tar.gz