diff --git a/doc/api/common_api.md b/doc/api/common_api.md
index 506f0e569d1..8da19c8c2ec 100644
--- a/doc/api/common_api.md
+++ b/doc/api/common_api.md
@@ -316,7 +316,7 @@ Enumeration value used for the `libspdm_set_data` and/or `libspdm_get_data` func
               fails then little-endian is tried.
 - `LIBSPDM_DATA_SEQUENCE_NUMBER_ENDIAN`
     - Specifies the endianness of the AEAD sequence number used in secured message encryption and
-      decryption when the negotiated secured SDPM version is 1.0 or 1.1. Its value is one of
+      decryption when the negotiated secured SPDM version is 1.0 or 1.1. Its value is one of
         - `LIBSPDM_DATA_SESSION_SEQ_NUM_ENC_LITTLE_DEC_LITTLE`
             - Data is both encrypted and decrypted with a little-endian sequence number. (default)
         - `LIBSPDM_DATA_SESSION_SEQ_NUM_ENC_LITTLE_DEC_BOTH`
@@ -392,7 +392,7 @@ Enumeration value used for the `libspdm_set_data` and/or `libspdm_get_data` func
      `LIBSPDM_SESSION_STATE_ESTABLISHED` state.
 - `LIBSPDM_DATA_SESSION_SEQUENCE_NUMBER_ENDIAN`
     - For a given session ID, returns the endianness of the AEAD sequence number when the
-      negotiated secured SDPM version is 1.0 or 1.1. Its value is one of
+      negotiated secured SPDM version is 1.0 or 1.1. Its value is one of
         - `LIBSPDM_DATA_SESSION_SEQ_NUM_ENC_LITTLE_DEC_LITTLE`
             - The endianness of the sequence number is little-endian.
         - `LIBSPDM_DATA_SESSION_SEQ_NUM_ENC_BIG_DEC_BIG`
diff --git a/doc/api/requester_api.md b/doc/api/requester_api.md
index 09333c6b80d..5499f71238c 100644
--- a/doc/api/requester_api.md
+++ b/doc/api/requester_api.md
@@ -168,7 +168,7 @@ The SPDM context.
 Indicates if it is a secured message (non-NULL) or an unsecured message (NULL).
 
 **request_attribute**<br/>
-Species directives to the Responder. It is a bitmask and its value can contain any combination of
+Specifies directives to the Responder. It is a bitmask and its value can contain any combination of
 - `SPDM_GET_MEASUREMENTS_REQUEST_ATTRIBUTES_GENERATE_SIGNATURE`
     - If set then Responder will provide a signature.
 - `SPDM_GET_MEASUREMENTS_REQUEST_ATTRIBUTES_RAW_BIT_STREAM_REQUESTED`
@@ -177,7 +177,7 @@ Species directives to the Responder. It is a bitmask and its value can contain a
     - Only supported in SPDM version 1.2 and later.
 
 **measurement_operation**<br/>
-Species the measurement operation to be performed by the Responder. Its value is one of
+Specifies the measurement operation to be performed by the Responder. Its value is one of
 - `SPDM_GET_MEASUREMENTS_REQUEST_MEASUREMENT_OPERATION_TOTAL_NUMBER_OF_MEASUREMENTS`
     - Returns the total number of measurement blocks available through the `number_of_blocks`
       parameter.