diff --git a/CHANGELOG.md b/CHANGELOG.md
index 37f0798b..1a890c93 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,18 @@
 # Changelog
 
 
+## [3.1.2](https://github.com/GoogleCloudPlatform/google-cloud-spanner-hibernate/compare/v3.1.1...v3.1.2) (2024-03-08)
+
+
+### Bug Fixes
+
+* JSON nulls were inserted as STRINGs and rejected ([#952](https://github.com/GoogleCloudPlatform/google-cloud-spanner-hibernate/issues/952)) ([c7c23a1](https://github.com/GoogleCloudPlatform/google-cloud-spanner-hibernate/commit/c7c23a176dbe55a314b2977620e47cc159f76b30))
+
+
+### Dependencies
+
+* bump com.google.cloud:google-cloud-spanner-jdbc ([#949](https://github.com/GoogleCloudPlatform/google-cloud-spanner-hibernate/issues/949)) ([05211ba](https://github.com/GoogleCloudPlatform/google-cloud-spanner-hibernate/commit/05211ba8acbfb069006462ee5a4cd4814ab87f67))
+
 ## [3.1.1](https://github.com/GoogleCloudPlatform/google-cloud-spanner-hibernate/compare/v3.1.0...v3.1.1) (2024-03-06)
 
 
diff --git a/google-cloud-spanner-hibernate-dialect/pom.xml b/google-cloud-spanner-hibernate-dialect/pom.xml
index 6ec6926d..99ec9735 100644
--- a/google-cloud-spanner-hibernate-dialect/pom.xml
+++ b/google-cloud-spanner-hibernate-dialect/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <artifactId>google-cloud-spanner-hibernate</artifactId>
     <groupId>com.google.cloud</groupId>
-    <version>3.1.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
+    <version>3.1.2</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
   </parent>
 
   <properties>
diff --git a/google-cloud-spanner-hibernate-samples/basic-hibernate-sample/pom.xml b/google-cloud-spanner-hibernate-samples/basic-hibernate-sample/pom.xml
index 3832daa5..92167385 100644
--- a/google-cloud-spanner-hibernate-samples/basic-hibernate-sample/pom.xml
+++ b/google-cloud-spanner-hibernate-samples/basic-hibernate-sample/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <artifactId>google-cloud-spanner-hibernate-samples</artifactId>
     <groupId>com.google.cloud</groupId>
-    <version>3.1.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
+    <version>3.1.2</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/google-cloud-spanner-hibernate-samples/basic-spanner-features-sample/pom.xml b/google-cloud-spanner-hibernate-samples/basic-spanner-features-sample/pom.xml
index f75dc181..32e5ecff 100644
--- a/google-cloud-spanner-hibernate-samples/basic-spanner-features-sample/pom.xml
+++ b/google-cloud-spanner-hibernate-samples/basic-spanner-features-sample/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <artifactId>google-cloud-spanner-hibernate-samples</artifactId>
     <groupId>com.google.cloud</groupId>
-    <version>3.1.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
+    <version>3.1.2</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/google-cloud-spanner-hibernate-samples/microprofile-jpa-sample/pom.xml b/google-cloud-spanner-hibernate-samples/microprofile-jpa-sample/pom.xml
index d55fc594..94c0d63a 100644
--- a/google-cloud-spanner-hibernate-samples/microprofile-jpa-sample/pom.xml
+++ b/google-cloud-spanner-hibernate-samples/microprofile-jpa-sample/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <artifactId>google-cloud-spanner-hibernate-samples</artifactId>
     <groupId>com.google.cloud</groupId>
-    <version>3.1.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
+    <version>3.1.2</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/google-cloud-spanner-hibernate-samples/pom.xml b/google-cloud-spanner-hibernate-samples/pom.xml
index c276360d..a5dae149 100644
--- a/google-cloud-spanner-hibernate-samples/pom.xml
+++ b/google-cloud-spanner-hibernate-samples/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<artifactId>google-cloud-spanner-hibernate</artifactId>
 		<groupId>com.google.cloud</groupId>
-		<version>3.1.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
+		<version>3.1.2</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
 	</parent>
 
 	<modelVersion>4.0.0</modelVersion>
diff --git a/google-cloud-spanner-hibernate-samples/quarkus-jpa-sample/pom.xml b/google-cloud-spanner-hibernate-samples/quarkus-jpa-sample/pom.xml
index 0720b3f6..433437cf 100644
--- a/google-cloud-spanner-hibernate-samples/quarkus-jpa-sample/pom.xml
+++ b/google-cloud-spanner-hibernate-samples/quarkus-jpa-sample/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <artifactId>google-cloud-spanner-hibernate-samples</artifactId>
     <groupId>com.google.cloud</groupId>
-    <version>3.1.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
+    <version>3.1.2</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/google-cloud-spanner-hibernate-samples/spanner-hibernate-codelab/pom.xml b/google-cloud-spanner-hibernate-samples/spanner-hibernate-codelab/pom.xml
index bcf6d67e..ce7439b6 100644
--- a/google-cloud-spanner-hibernate-samples/spanner-hibernate-codelab/pom.xml
+++ b/google-cloud-spanner-hibernate-samples/spanner-hibernate-codelab/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <artifactId>google-cloud-spanner-hibernate-samples</artifactId>
     <groupId>com.google.cloud</groupId>
-    <version>3.1.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
+    <version>3.1.2</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/google-cloud-spanner-hibernate-samples/spring-data-jpa-full-sample/pom.xml b/google-cloud-spanner-hibernate-samples/spring-data-jpa-full-sample/pom.xml
index 46b79936..8c4dcf29 100644
--- a/google-cloud-spanner-hibernate-samples/spring-data-jpa-full-sample/pom.xml
+++ b/google-cloud-spanner-hibernate-samples/spring-data-jpa-full-sample/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <artifactId>google-cloud-spanner-hibernate-samples</artifactId>
     <groupId>com.google.cloud</groupId>
-    <version>3.1.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
+    <version>3.1.2</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/google-cloud-spanner-hibernate-samples/spring-data-jpa-sample/pom.xml b/google-cloud-spanner-hibernate-samples/spring-data-jpa-sample/pom.xml
index 97526bc5..b3594b2f 100644
--- a/google-cloud-spanner-hibernate-samples/spring-data-jpa-sample/pom.xml
+++ b/google-cloud-spanner-hibernate-samples/spring-data-jpa-sample/pom.xml
@@ -5,7 +5,7 @@
   <parent>
     <artifactId>google-cloud-spanner-hibernate-samples</artifactId>
     <groupId>com.google.cloud</groupId>
-    <version>3.1.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
+    <version>3.1.2</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/google-cloud-spanner-hibernate-testing/pom.xml b/google-cloud-spanner-hibernate-testing/pom.xml
index a392c51e..7e3215e8 100644
--- a/google-cloud-spanner-hibernate-testing/pom.xml
+++ b/google-cloud-spanner-hibernate-testing/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<artifactId>google-cloud-spanner-hibernate</artifactId>
 		<groupId>com.google.cloud</groupId>
-		<version>3.1.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
+		<version>3.1.2</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
 	</parent>
 
 	<properties>
diff --git a/google-cloud-spanner-hibernate-tools/pom.xml b/google-cloud-spanner-hibernate-tools/pom.xml
index 074b1ad8..5c47e1e3 100644
--- a/google-cloud-spanner-hibernate-tools/pom.xml
+++ b/google-cloud-spanner-hibernate-tools/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-spanner-hibernate</artifactId>
-    <version>3.1.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
+    <version>3.1.2</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
   </parent>
 
   <artifactId>google-cloud-spanner-hibernate-tools</artifactId>
diff --git a/pom.xml b/pom.xml
index ba42fabf..1ff7cc17 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-spanner-hibernate</artifactId>
   <packaging>pom</packaging>
-  <version>3.1.2-SNAPSHOT</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
+  <version>3.1.2</version><!-- {x-version-update:google-cloud-spanner-hibernate:current} -->
 
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
diff --git a/versions.txt b/versions.txt
index f90bbb4c..a274126e 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,4 +1,4 @@
 # Format:
 # module:released-version:current-version
 
-google-cloud-spanner-hibernate:3.1.1:3.1.2-SNAPSHOT
\ No newline at end of file
+google-cloud-spanner-hibernate:3.1.2:3.1.2
\ No newline at end of file