diff --git a/axelor-business-support/src/main/resources/views/ProjectVersion.xml b/axelor-business-support/src/main/resources/views/ProjectVersion.xml
index 64c0cd3bd61..d6d6caa2c8e 100644
--- a/axelor-business-support/src/main/resources/views/ProjectVersion.xml
+++ b/axelor-business-support/src/main/resources/views/ProjectVersion.xml
@@ -29,8 +29,11 @@
   </form>
 
   <action-attrs name="action-version-attrs-project-domain">
-    <attribute name="domain" for="project"
-      expr="eval: &quot; ${__user__.id} MEMBER OF self.membersUserSet &quot;"/>
+    <attribute name="domain" for="projectSet"
+      expr="eval: &quot; ${__user__.id} MEMBER OF self.membersUserSet &quot;" if="!__parent__"/>
+    <attribute name="domain" for="projectSet"
+      expr="eval: &quot; ${__user__.id} MEMBER OF self.membersUserSet AND self.id != ${__parent__.id} &quot;"
+      if="__parent__ &amp;&amp; __parent__._model == 'com.axelor.apps.project.db.Project'"/>
   </action-attrs>
 
 </object-views>
\ No newline at end of file
diff --git a/changelogs/unreleased/88524.yml b/changelogs/unreleased/88524.yml
new file mode 100644
index 00000000000..988b714aae0
--- /dev/null
+++ b/changelogs/unreleased/88524.yml
@@ -0,0 +1,3 @@
+---
+title: "Project version: fixed project filter to avoid conflicts on save."
+module: axelor-business-support