diff --git a/libwvdrmengine/oemcrypto/odk/include/core_message_features.h b/libwvdrmengine/oemcrypto/odk/include/core_message_features.h
index 01cdda8f..1365dd84 100644
--- a/libwvdrmengine/oemcrypto/odk/include/core_message_features.h
+++ b/libwvdrmengine/oemcrypto/odk/include/core_message_features.h
@@ -26,9 +26,9 @@ struct CoreMessageFeatures {
 
   // This is the published version of the ODK Core Message library. The default
   // behavior is for the server to restrict messages to at most this version
-  // number. The default is 18.2.
+  // number. The default is 18.3.
   uint32_t maximum_major_version = 18;
-  uint32_t maximum_minor_version = 2;
+  uint32_t maximum_minor_version = 3;
 
   bool operator==(const CoreMessageFeatures &other) const;
   bool operator!=(const CoreMessageFeatures &other) const {
diff --git a/libwvdrmengine/oemcrypto/odk/include/odk_structs.h b/libwvdrmengine/oemcrypto/odk/include/odk_structs.h
index fd29e0c4..1debc12b 100644
--- a/libwvdrmengine/oemcrypto/odk/include/odk_structs.h
+++ b/libwvdrmengine/oemcrypto/odk/include/odk_structs.h
@@ -16,10 +16,10 @@ extern "C" {
 
 /* The version of this library. */
 #define ODK_MAJOR_VERSION 18
-#define ODK_MINOR_VERSION 2
+#define ODK_MINOR_VERSION 3
 
 /* ODK Version string. Date changed automatically on each release. */
-#define ODK_RELEASE_DATE "ODK v18.2 2023-07-07"
+#define ODK_RELEASE_DATE "ODK v18.3 2023-07-07"
 
 /* The lowest version number for an ODK message. */
 #define ODK_FIRST_VERSION 16
diff --git a/libwvdrmengine/oemcrypto/odk/src/core_message_features.cpp b/libwvdrmengine/oemcrypto/odk/src/core_message_features.cpp
index 6ee2a250..b8cae56f 100644
--- a/libwvdrmengine/oemcrypto/odk/src/core_message_features.cpp
+++ b/libwvdrmengine/oemcrypto/odk/src/core_message_features.cpp
@@ -28,7 +28,7 @@ CoreMessageFeatures CoreMessageFeatures::DefaultFeatures(
       features.maximum_minor_version = 2;  // 17.2
       break;
     case 18:
-      features.maximum_minor_version = 2;  // 18.2
+      features.maximum_minor_version = 3;  // 18.3
       break;
     default:
       features.maximum_minor_version = 0;
diff --git a/libwvdrmengine/oemcrypto/odk/test/odk_test.cpp b/libwvdrmengine/oemcrypto/odk/test/odk_test.cpp
index 4d6b9ef0..71073fc1 100644
--- a/libwvdrmengine/oemcrypto/odk/test/odk_test.cpp
+++ b/libwvdrmengine/oemcrypto/odk/test/odk_test.cpp
@@ -1216,7 +1216,7 @@ std::vector<VersionParameters> TestCases() {
       // number.
       {16, ODK_MAJOR_VERSION, ODK_MINOR_VERSION, 16, 5},
       {17, ODK_MAJOR_VERSION, ODK_MINOR_VERSION, 17, 2},
-      {18, ODK_MAJOR_VERSION, ODK_MINOR_VERSION, 18, 2},
+      {18, ODK_MAJOR_VERSION, ODK_MINOR_VERSION, 18, 3},
       // Here are some known good versions. Make extra sure they work.
       {ODK_MAJOR_VERSION, 16, 3, 16, 3},
       {ODK_MAJOR_VERSION, 16, 4, 16, 4},
@@ -1225,12 +1225,13 @@ std::vector<VersionParameters> TestCases() {
       {ODK_MAJOR_VERSION, 17, 2, 17, 2},
       {ODK_MAJOR_VERSION, 18, 1, 18, 1},
       {ODK_MAJOR_VERSION, 18, 2, 18, 2},
+      {ODK_MAJOR_VERSION, 18, 3, 18, 3},
       {0, 16, 3, 16, 3},
       {0, 16, 4, 16, 4},
       {0, 16, 5, 16, 5},
       {0, 17, 1, 17, 1},
       {0, 17, 2, 17, 2},
-      {0, 18, 2, 18, 2},  // Change to 19 when the default version is updated.
+      {0, 18, 3, 18, 3},  // Change to 19 when the default version is updated.
   };
   return test_cases;
 }
diff --git a/libwvdrmengine/oemcrypto/test/oemcrypto_basic_test.cpp b/libwvdrmengine/oemcrypto/test/oemcrypto_basic_test.cpp
index 9c2062af..36406de8 100644
--- a/libwvdrmengine/oemcrypto/test/oemcrypto_basic_test.cpp
+++ b/libwvdrmengine/oemcrypto/test/oemcrypto_basic_test.cpp
@@ -156,7 +156,7 @@ TEST_F(OEMCryptoClientTest, FreeUnallocatedSecureBufferNoFailure) {
  */
 TEST_F(OEMCryptoClientTest, VersionNumber) {
   const std::string log_message =
-      "OEMCrypto unit tests for API 18.2. Tests last updated 2023-04-12";
+      "OEMCrypto unit tests for API 18.3. Tests last updated 2023-07-07";
   cout << "             " << log_message << "\n";
   cout << "             "
        << "These tests are part of Android U."
@@ -165,7 +165,7 @@ TEST_F(OEMCryptoClientTest, VersionNumber) {
   // If any of the following fail, then it is time to update the log message
   // above.
   EXPECT_EQ(ODK_MAJOR_VERSION, 18);
-  EXPECT_EQ(ODK_MINOR_VERSION, 2);
+  EXPECT_EQ(ODK_MINOR_VERSION, 3);
   EXPECT_EQ(kCurrentAPI, static_cast<unsigned>(ODK_MAJOR_VERSION));
   OEMCrypto_Security_Level level = OEMCrypto_SecurityLevel();
   EXPECT_GT(level, OEMCrypto_Level_Unknown);