diff --git a/CHANGELOG.md b/CHANGELOG.md
index cdf3b151..4334e04c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,11 @@
 
 ## Unreleased
 
+## `0.3.1` - 2019-11-25
+
+### Changed
+
+- Upgraded to GDK for Unity version `0.3.1`
 ## `0.3.0` - 2019-11-11
 
 ### Breaking Changes
diff --git a/gdk.pinned b/gdk.pinned
index 45ab35be..31f43b51 100644
--- a/gdk.pinned
+++ b/gdk.pinned
@@ -1 +1 @@
-develop 180a1fc239c6a05aecf7357b78282794145e0ccd
\ No newline at end of file
+develop 51790202bc90faba98ff5470ea01facde2a150cb
\ No newline at end of file
diff --git a/packer.config.json b/packer.config.json
index 8ccac0d3..b500044c 100644
--- a/packer.config.json
+++ b/packer.config.json
@@ -1,6 +1,6 @@
 {
   "package_name": "gdk-for-unity-fps-starter-project",
-  "version": "0.3.0",
+  "version": "0.3.1",
   "git_packages": [
     {
       "clone_url": "git@github.com:spatialos/gdk-for-unity-fps-starter-project.git",
diff --git a/workers/unity/Packages/io.improbable.gdk.deploymentmanager/package.json b/workers/unity/Packages/io.improbable.gdk.deploymentmanager/package.json
index c7e204bc..2291f28e 100644
--- a/workers/unity/Packages/io.improbable.gdk.deploymentmanager/package.json
+++ b/workers/unity/Packages/io.improbable.gdk.deploymentmanager/package.json
@@ -1,7 +1,7 @@
 {
   "name": "io.improbable.gdk.deploymentmanager",
   "displayName": "SpatialOS GDK Deployment Manager",
-  "version": "0.3.0",
+  "version": "0.3.1",
   "unity": "2019.1",
   "author": "Improbable Worlds Ltd",
   "description": "SpatialOS GDK Deployment Manager.",
diff --git a/workers/unity/Packages/manifest.json b/workers/unity/Packages/manifest.json
index e78b1e0f..7d56f2a0 100644
--- a/workers/unity/Packages/manifest.json
+++ b/workers/unity/Packages/manifest.json
@@ -4,18 +4,18 @@
     "com.unity.package-manager-ui": "2.2.0",
     "com.unity.postprocessing": "2.1.4",
     "com.unity.ugui": "1.0.0",
-    "io.improbable.gdk.buildsystem": "0.3.0",
-    "io.improbable.gdk.core": "0.3.0",
-    "io.improbable.gdk.debug": "0.3.0",
-    "io.improbable.gdk.deploymentlauncher": "0.3.0",
+    "io.improbable.gdk.buildsystem": "0.3.1",
+    "io.improbable.gdk.core": "0.3.1",
+    "io.improbable.gdk.debug": "0.3.1",
+    "io.improbable.gdk.deploymentlauncher": "0.3.1",
     "io.improbable.gdk.deploymentmanager": "file:io.improbable.gdk.deploymentmanager",
-    "io.improbable.gdk.gameobjectcreation": "0.3.0",
-    "io.improbable.gdk.mobile": "0.3.0",
-    "io.improbable.gdk.playerlifecycle": "0.3.0",
-    "io.improbable.gdk.querybasedinteresthelper": "0.3.0",
-    "io.improbable.gdk.testutils": "0.3.0",
-    "io.improbable.gdk.tools": "0.3.0",
-    "io.improbable.gdk.transformsynchronization": "0.3.0",
+    "io.improbable.gdk.gameobjectcreation": "0.3.1",
+    "io.improbable.gdk.mobile": "0.3.1",
+    "io.improbable.gdk.playerlifecycle": "0.3.1",
+    "io.improbable.gdk.querybasedinteresthelper": "0.3.1",
+    "io.improbable.gdk.testutils": "0.3.1",
+    "io.improbable.gdk.tools": "0.3.1",
+    "io.improbable.gdk.transformsynchronization": "0.3.1",
     "com.unity.modules.ai": "1.0.0",
     "com.unity.modules.animation": "1.0.0",
     "com.unity.modules.audio": "1.0.0",