diff --git a/README.md b/README.md
index 9476dbdc..dca5cdc7 100644
--- a/README.md
+++ b/README.md
@@ -41,7 +41,7 @@ public class HandlerStream implements RequestStreamHandler {
 <dependency>
  <groupId>com.amazonaws</groupId>
  <artifactId>aws-lambda-java-core</artifactId>
- <version>1.2.2</version>
+ <version>1.2.3</version>
 </dependency>
 ```
 
@@ -162,4 +162,4 @@ This package defines the Lambda serialization logic using in the `aws-lambda-jav
 
 Each of the supplied packages should be used without modification. Removing
 dependencies, adding conflicting dependencies, or selectively including classes
-from the packages can result in unexpected behavior.
\ No newline at end of file
+from the packages can result in unexpected behavior.
diff --git a/aws-lambda-java-core/RELEASE.CHANGELOG.md b/aws-lambda-java-core/RELEASE.CHANGELOG.md
index fd52389b..ebd0566f 100644
--- a/aws-lambda-java-core/RELEASE.CHANGELOG.md
+++ b/aws-lambda-java-core/RELEASE.CHANGELOG.md
@@ -1,3 +1,7 @@
+### August 17, 2023
+`1.2.3`:
+- Extended logger interface with level-aware logging backend functions
+
 ### November 09, 2022
 `1.2.2`:
 - Added new `CustomPojoSerializer` interface
diff --git a/aws-lambda-java-core/pom.xml b/aws-lambda-java-core/pom.xml
index 1438a2e7..0dd848a9 100644
--- a/aws-lambda-java-core/pom.xml
+++ b/aws-lambda-java-core/pom.xml
@@ -5,7 +5,7 @@
   
   <groupId>com.amazonaws</groupId>
   <artifactId>aws-lambda-java-core</artifactId>
-  <version>1.2.2</version>
+  <version>1.2.3</version>
   <packaging>jar</packaging>
   
   <name>AWS Lambda Java Core Library</name>
diff --git a/aws-lambda-java-events/README.md b/aws-lambda-java-events/README.md
index cc641ed8..2c5bdb1f 100644
--- a/aws-lambda-java-events/README.md
+++ b/aws-lambda-java-events/README.md
@@ -66,7 +66,7 @@
     <dependency>
         <groupId>com.amazonaws</groupId>
         <artifactId>aws-lambda-java-core</artifactId>
-        <version>1.2.2</version>
+        <version>1.2.3</version>
     </dependency>
     <dependency>
         <groupId>com.amazonaws</groupId>
diff --git a/samples/kinesis-firehose-event-handler/pom.xml b/samples/kinesis-firehose-event-handler/pom.xml
index a0943da2..5265443a 100644
--- a/samples/kinesis-firehose-event-handler/pom.xml
+++ b/samples/kinesis-firehose-event-handler/pom.xml
@@ -41,7 +41,7 @@
         <dependency>
             <groupId>com.amazonaws</groupId>
             <artifactId>aws-lambda-java-core</artifactId>
-            <version>1.2.2</version>
+            <version>1.2.3</version>
         </dependency>
         <dependency>
             <groupId>com.amazonaws</groupId>