diff --git a/src/tpm2/TpmTypes.h b/src/tpm2/TpmTypes.h
index 428cf4c5..a06d7590 100644
--- a/src/tpm2/TpmTypes.h
+++ b/src/tpm2/TpmTypes.h
@@ -319,11 +319,11 @@ typedef  UINT32             TPM_SPEC;
 #define SPEC_LEVEL              00
 #define SPEC_LEVEL_NUM          0  // libtpms added: SPEC_LEVEL without leading zeros
 #define TPM_SPEC_LEVEL          (TPM_SPEC)(SPEC_LEVEL)
-#define SPEC_VERSION            162
+#define SPEC_VERSION            164
 #define TPM_SPEC_VERSION        (TPM_SPEC)(SPEC_VERSION)
-#define SPEC_YEAR               2020
+#define SPEC_YEAR               2021
 #define TPM_SPEC_YEAR           (TPM_SPEC)(SPEC_YEAR)
-#define SPEC_DAY_OF_YEAR        53
+#define SPEC_DAY_OF_YEAR        75
 #define TPM_SPEC_DAY_OF_YEAR    (TPM_SPEC)(SPEC_DAY_OF_YEAR)
 
 /* Table 2:7 - Definition of TPM_CONSTANTS32 Constants */