diff --git a/.github/renovate.json b/.github/renovate.json
index 2b38985..258c3e0 100644
--- a/.github/renovate.json
+++ b/.github/renovate.json
@@ -1,8 +1,7 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": [
-    "config:recommended",
-    "group:allNonMajor"
+    "config:recommended"
   ],
   "dependencyDashboard": true,
   "labels": ["dependencies"],
@@ -15,6 +14,79 @@
       "description": "In-repo modules are pinned to the 0.0.0-SNAPSHOT placeholder (versions come from git tags at release time) — never update them",
       "matchPackageNames": ["de.soptim.opencgmes:*"],
       "enabled": false
+    },
+    {
+      "description": "Group updates per project — one non-major and one major PR each",
+      "matchFileNames": ["cimxml/**"],
+      "matchUpdateTypes": ["minor", "patch", "pin", "digest"],
+      "groupName": "cimxml non-major dependencies",
+      "groupSlug": "cimxml-non-major"
+    },
+    {
+      "matchFileNames": ["cimxml/**"],
+      "matchUpdateTypes": ["major"],
+      "groupName": "cimxml major dependencies",
+      "groupSlug": "cimxml-major"
+    },
+    {
+      "matchFileNames": ["cimvocabcheck/**"],
+      "matchUpdateTypes": ["minor", "patch", "pin", "digest"],
+      "groupName": "cimvocabcheck non-major dependencies",
+      "groupSlug": "cimvocabcheck-non-major"
+    },
+    {
+      "matchFileNames": ["cimvocabcheck/**"],
+      "matchUpdateTypes": ["major"],
+      "groupName": "cimvocabcheck major dependencies",
+      "groupSlug": "cimvocabcheck-major"
+    },
+    {
+      "matchFileNames": ["cimnotebook/**"],
+      "matchUpdateTypes": ["minor", "patch", "pin", "digest"],
+      "groupName": "cimnotebook non-major dependencies",
+      "groupSlug": "cimnotebook-non-major"
+    },
+    {
+      "matchFileNames": ["cimnotebook/**"],
+      "matchUpdateTypes": ["major"],
+      "groupName": "cimnotebook major dependencies",
+      "groupSlug": "cimnotebook-major"
+    },
+    {
+      "matchFileNames": ["docs/**"],
+      "matchUpdateTypes": ["minor", "patch", "pin", "digest"],
+      "groupName": "docs non-major dependencies",
+      "groupSlug": "docs-non-major"
+    },
+    {
+      "matchFileNames": ["docs/**"],
+      "matchUpdateTypes": ["major"],
+      "groupName": "docs major dependencies",
+      "groupSlug": "docs-major"
+    },
+    {
+      "matchFileNames": ["pom.xml"],
+      "matchUpdateTypes": ["minor", "patch", "pin", "digest"],
+      "groupName": "maven parent non-major dependencies",
+      "groupSlug": "maven-parent-non-major"
+    },
+    {
+      "matchFileNames": ["pom.xml"],
+      "matchUpdateTypes": ["major"],
+      "groupName": "maven parent major dependencies",
+      "groupSlug": "maven-parent-major"
+    },
+    {
+      "matchManagers": ["github-actions"],
+      "matchUpdateTypes": ["minor", "patch", "pin", "digest"],
+      "groupName": "github actions non-major dependencies",
+      "groupSlug": "github-actions-non-major"
+    },
+    {
+      "matchManagers": ["github-actions"],
+      "matchUpdateTypes": ["major"],
+      "groupName": "github actions major dependencies",
+      "groupSlug": "github-actions-major"
     }
   ],
   "gitIgnoredAuthors": ["41898282+github-actions[bot]@users.noreply.github.com"]