diff --git a/CMake/Dependencies/libkvspic-CMakeLists.txt b/CMake/Dependencies/libkvspic-CMakeLists.txt
index b72be4bcc..6ab35a2da 100644
--- a/CMake/Dependencies/libkvspic-CMakeLists.txt
+++ b/CMake/Dependencies/libkvspic-CMakeLists.txt
@@ -7,7 +7,7 @@ include(ExternalProject)
 # clone repo only
 ExternalProject_Add(libkvspic-download
 	GIT_REPOSITORY    https://github.com/awslabs/amazon-kinesis-video-streams-pic.git
-	GIT_TAG           d08be2e16303507d21b4cb376aecda98271687ad
+	GIT_TAG           57637ea593f4b43c509413a44d993ed08d7f2616
    	SOURCE_DIR        "${CMAKE_CURRENT_BINARY_DIR}/kvspic-src"
 	BINARY_DIR        "${CMAKE_CURRENT_BINARY_DIR}/kvspic-build"
 	CMAKE_ARGS
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 953e6adb2..d23b3cafa 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.6.3)
 set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/CMake;${CMAKE_MODULE_PATH}")
 include(Utilities)
-project(KinesisVideoProducerC VERSION 1.5.0 LANGUAGES C)
+project(KinesisVideoProducerC VERSION 1.5.1 LANGUAGES C)
 
 include(GNUInstallDirs)
 
diff --git a/src/source/Common/FileCredentialProvider.c b/src/source/Common/FileCredentialProvider.c
index 3ef36d95a..e955d6af8 100644
--- a/src/source/Common/FileCredentialProvider.c
+++ b/src/source/Common/FileCredentialProvider.c
@@ -121,9 +121,9 @@ STATUS readFileCredentials(PFileCredentialProvider pFileCredentialProvider)
 
     CHK(pFileCredentialProvider != NULL && pFileCredentialProvider->credentialsFilepath != NULL, STATUS_NULL_ARG);
 
-    // Refresh the credentials by reading from the credentials file if needed
+    // Only refresh the credentials by reading from the credentials file if needed.
+    // If we already have credentials and they are not expiring soon, we return successfully here.
     currentTime = pFileCredentialProvider->getCurrentTimeFn(pFileCredentialProvider->customData);
-
     CHK(pFileCredentialProvider->pAwsCredentials == NULL ||
             currentTime + CREDENTIAL_FILE_READ_GRACE_PERIOD > pFileCredentialProvider->pAwsCredentials->expiration,
         retStatus);
@@ -174,7 +174,10 @@ STATUS readFileCredentials(PFileCredentialProvider pFileCredentialProvider)
     sessionTokenLen = sessionToken == NULL ? 0 : (UINT32) STRNLEN(sessionToken, MAX_SESSION_TOKEN_LEN);
 
     if (expirationStr != NULL) {
-        convertTimestampToEpoch(expirationStr, currentTime / HUNDREDS_OF_NANOS_IN_A_SECOND, &expiration);
+        // It makes more sense for createDefaultCallbacksProviderWithFileAuth to fail if the credentials are expired
+        // than for it to succeed and let later service calls fail. Clients who cache credentials in a file will not
+        // see an error the first time they call createDefaultCallbacksProviderWithFileAuth without this check.
+        CHK_STATUS(convertTimestampToEpoch(expirationStr, currentTime / HUNDREDS_OF_NANOS_IN_A_SECOND, &expiration));
     } else {
         expiration = currentTime + MAX_ENFORCED_TOKEN_EXPIRATION_DURATION;
     }
diff --git a/src/source/Response.c b/src/source/Response.c
index 765449fd0..9b0f8397e 100644
--- a/src/source/Response.c
+++ b/src/source/Response.c
@@ -548,7 +548,9 @@ SIZE_T postResponseWriteCallback(PCHAR pBuffer, SIZE_T size, SIZE_T numItems, PV
     pNewBuffer = (PCHAR) MEMALLOC(pCurlResponse->callInfo.responseDataLen + dataSize + SIZEOF(CHAR));
     if (pNewBuffer != NULL) {
         // Copy forward the old
-        MEMCPY(pNewBuffer, pCurlResponse->callInfo.responseData, pCurlResponse->callInfo.responseDataLen);
+        if (pCurlResponse->callInfo.responseDataLen > 0) {
+            MEMCPY(pNewBuffer, pCurlResponse->callInfo.responseData, pCurlResponse->callInfo.responseDataLen);
+        }
 
         // Append the new data
         MEMCPY((PBYTE) pNewBuffer + pCurlResponse->callInfo.responseDataLen, pBuffer, dataSize);
diff --git a/tst/AwsCredentialsTest.cpp b/tst/AwsCredentialsTest.cpp
index 59fbb0819..4d7f82434 100644
--- a/tst/AwsCredentialsTest.cpp
+++ b/tst/AwsCredentialsTest.cpp
@@ -253,7 +253,7 @@ TEST_F(AwsCredentialsTest, TestFileCredentialsWriteWithSession) {
     UINT32 length = ARRAY_SIZE(fileContent);
 
     // Store the credentials in a file under the current dir
-    length = SNPRINTF(fileContent, length, "CREDENTIALS %s 1234567890 %s %s", mAccessKey, mSecretKey, mSessionToken);
+    length = SNPRINTF(fileContent, length, "CREDENTIALS %s 2200-01-01T00:00:00Z %s %s", mAccessKey, mSecretKey, mSessionToken);
     ASSERT_GT(ARRAY_SIZE(fileContent), length);
     ASSERT_EQ(STATUS_SUCCESS, writeFile(TEST_FILE_CREDENTIALS_FILE_PATH, FALSE, FALSE, (PBYTE) fileContent, length));
 
diff --git a/tst/FileLoggerFunctionalityTest.cpp b/tst/FileLoggerFunctionalityTest.cpp
index 0e0894c25..3b2b8edbc 100644
--- a/tst/FileLoggerFunctionalityTest.cpp
+++ b/tst/FileLoggerFunctionalityTest.cpp
@@ -1,7 +1,7 @@
 #include "ProducerTestFixture.h"
 
-// length of time and log level string in log: "2019-11-09 19:11:16.xxxxxx VERBOSE "
-#define TIMESTRING_OFFSET               35
+// length of time and log level string in log: "2019-11-09 19:11:16.xxx VERBOSE "
+#define TIMESTRING_OFFSET               32
 
 namespace com { namespace amazonaws { namespace kinesis { namespace video {