diff --git a/DevProject/Packages/packages-lock.json b/DevProject/Packages/packages-lock.json
index 8eb2847fa1..fcb1b62a69 100644
--- a/DevProject/Packages/packages-lock.json
+++ b/DevProject/Packages/packages-lock.json
@@ -79,7 +79,7 @@
       "depth": 0,
       "source": "local",
       "dependencies": {
-        "com.unity.ml-agents": "3.0.0-exp.1",
+        "com.unity.ml-agents": "3.0.0",
         "com.unity.modules.physics": "1.0.0"
       }
     },
diff --git a/Project/Packages/packages-lock.json b/Project/Packages/packages-lock.json
index 274982a762..1fcbf50632 100644
--- a/Project/Packages/packages-lock.json
+++ b/Project/Packages/packages-lock.json
@@ -96,7 +96,7 @@
       "depth": 0,
       "source": "local",
       "dependencies": {
-        "com.unity.ml-agents": "3.0.0-exp.1",
+        "com.unity.ml-agents": "3.0.0",
         "com.unity.modules.physics": "1.0.0"
       }
     },
diff --git a/com.unity.ml-agents.extensions/package.json b/com.unity.ml-agents.extensions/package.json
index d506b8bcf6..4f44bcd6c0 100644
--- a/com.unity.ml-agents.extensions/package.json
+++ b/com.unity.ml-agents.extensions/package.json
@@ -1,7 +1,7 @@
 {
   "name": "com.unity.ml-agents.extensions",
   "displayName": "ML Agents Extensions",
-  "version": "0.6.1-exp.1",
+  "version": "0.6.1-preview",
   "unity": "2023.2",
   "description": "A source-only package for new features based on ML-Agents",
   "dependencies": {
diff --git a/utils/validate_versions.py b/utils/validate_versions.py
index a454343607..c8d0168cdf 100755
--- a/utils/validate_versions.py
+++ b/utils/validate_versions.py
@@ -87,7 +87,7 @@ def set_version(
         if csharp_extensions_version is not None:
             # since this has never been promoted we need to keep
             # it in preview forever or CI will fail
-            extension_version = f"{csharp_extensions_version}-exp.1"
+            extension_version = f"{csharp_extensions_version}-preview"
         print(
             f"Setting package version to {package_version} in {MLAGENTS_PACKAGE_JSON_PATH}"
             f" and {MLAGENTS_EXTENSIONS_PACKAGE_JSON_PATH}"