diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0c61b9f..d8e9552 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,13 @@
 ### Changed
 
 - Update to [SonarQube version 2026.2](https://www.sonarsource.com/products/sonarqube/whats-new/2026-2/) (#128).
-- Update plugin `spotbugs/sonar-findbugs` to [version 4.6.0](https://github.com/spotbugs/sonar-findbugs/releases/tag/v4.6.0) (#128).
+
+## [2026.1.2](https://github.com/ICTU/sonar/releases/tag/2026.1.2) - 2026-04-02
+
+### Changed
+
+- Update to [SonarQube version 2026.1](https://www.sonarsource.com/products/sonarqube/whats-new/2026-1/) (#130).
+- Update plugin `spotbugs/sonar-findbugs` to [version 4.6.0](https://github.com/spotbugs/sonar-findbugs/releases/tag/v4.6.0) (#130).
 
 ## [2025.5.0](https://github.com/ICTU/sonar/releases/tag/2025.5.0) - 2025-10-09
 
diff --git a/Dockerfile b/Dockerfile
index d7a68b3..d5ac6ee 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 ARG IMAGE_NAME=sonarqube
-ARG IMAGE_VERSION=2026.2.1
+ARG IMAGE_VERSION=2026.1.2
 ARG IMAGE_EDITION=developer
 
 FROM $IMAGE_NAME:$IMAGE_VERSION-$IMAGE_EDITION
diff --git a/MAINTENANCE.md b/MAINTENANCE.md
index 0ed05df..45b1f46 100644
--- a/MAINTENANCE.md
+++ b/MAINTENANCE.md
@@ -3,6 +3,7 @@
 
 ## Version upgrade workflow
 
+1. Verify upgrade path with the [SonarQube Update Calculator](https://docs.sonarsource.com/sonarqube-server/server-update-and-maintenance/update/determine-path#update-path-calculator)
 1. Update version spec in `Dockerfile`, `helm/Chart.yaml`, `helm/values.yaml` and `sonar-project.properties` with the new version of SonarQube
 1. Update external plugins in the [config.json](https://github.com/ICTU/sonar/blob/master/src/config.json) with latest versions listed in their respective repository `/releases/` url
 1. Update profile versions based on the internal plugin versions in the [config.json](https://github.com/ICTU/sonar/blob/master/src/config.json)
diff --git a/helm/Chart.yaml b/helm/Chart.yaml
index 3a2a82e..ae98aa3 100644
--- a/helm/Chart.yaml
+++ b/helm/Chart.yaml
@@ -1,8 +1,8 @@
 ---
 apiVersion: v2
 name: ictu-sonarqube
-version: 2026.2.1
-appVersion: "2026.2.1"
+version: 2026.1.2
+appVersion: "2026.1.2"
 description: A SonarQube helm chart with plugins, profiles and config used at ICTU
 type: application
 home: https://github.com/ICTU/sonar
@@ -12,5 +12,5 @@ dependencies:
     repository: oci://registry-1.docker.io/bitnamicharts  # https://github.com/bitnami/charts/blob/main/bitnami/postgresql/Chart.yaml
     condition: postgresql.enabled
   - name: sonarqube
-    version: 2026.2.1
+    version: 2026.1.2
     repository: https://SonarSource.github.io/helm-chart-sonarqube  # https://github.com/SonarSource/helm-chart-sonarqube/blob/master/charts/sonarqube/Chart.yaml
diff --git a/helm/values.yaml b/helm/values.yaml
index 1e37fe0..f65a93c 100644
--- a/helm/values.yaml
+++ b/helm/values.yaml
@@ -67,7 +67,7 @@ sonarqube:
 # https://github.com/SonarSource/helm-chart-sonarqube/blob/master/charts/sonarqube/values.yaml
   image:
     repository: ictu/sonar
-    tag: 2026.2.1-developer
+    tag: 2026.1.2-developer
     pullPolicy: IfNotPresent
   jdbcOverwrite:
     enabled: true
diff --git a/sonar-project.properties b/sonar-project.properties
index 1267dc3..87e2129 100644
--- a/sonar-project.properties
+++ b/sonar-project.properties
@@ -1,7 +1,7 @@
 sonar.organization=ictu
 sonar.projectKey=ICTU_sonar
 sonar.projectName=sonar
-sonar.projectVersion=2026.2.1
+sonar.projectVersion=2026.1.2
 
 sonar.sources=docker,helm,src
 sonar.tests=tests
diff --git a/src/config.json b/src/config.json
index 64016eb..fdf3c1d 100644
--- a/src/config.json
+++ b/src/config.json
@@ -9,35 +9,35 @@
   "profiles": {
     "ansible": {
       "plugin_name": "iac-plugin",
-      "version": "ansible-profile-v2.6.1"
+      "version": "ansible-profile-v2.5.0"
     },
     "cs": {
       "plugin_name": "csharp-plugin",
-      "version": "cs-profile-v10.21.0"
+      "version": "cs-profile-v10.18.0"
     },
     "css": {
       "plugin_name": "javascript-plugin",
-      "version": "css-profile-v12.1.0"
+      "version": "css-profile-v11.8.0"
     },
     "dart": {
       "plugin_name": "dart-plugin",
-      "version": "dart-profile-v1.4.0"
+      "version": "dart-profile-v1.3.1"
     },
     "docker": {
       "plugin_name": "iac-plugin",
-      "version": "docker-profile-v2.6.1"
+      "version": "docker-profile-v2.5.0"
     },
     "java": {
       "plugin_name": "java-plugin",
-      "version": "java-profile-v8.26.0"
+      "version": "java-profile-v8.22.0"
     },
     "js": {
       "plugin_name": "javascript-plugin",
-      "version": "js-profile-v12.1.0"
+      "version": "js-profile-v11.8.0"
     },
     "kotlin": {
       "plugin_name": "kotlin-plugin",
-      "version": "kotlin-profile-v3.4.0"
+      "version": "kotlin-profile-v3.3.2"
     },
     "plsql": {
       "plugin_name": "plsql-plugin",
@@ -45,7 +45,7 @@
     },
     "py": {
       "plugin_name": "python-plugin",
-      "version": "py-profile-v5.19.0"
+      "version": "py-profile-v5.14.2"
     },
     "rust": {
       "plugin_name": "rust-plugin",
@@ -57,19 +57,19 @@
     },
     "ts": {
       "plugin_name": "javascript-plugin",
-      "version": "ts-profile-v12.1.0"
+      "version": "ts-profile-v11.8.0"
     },
     "vbnet": {
       "plugin_name": "vbnet-plugin",
-      "version": "vbnet-profile-v10.21.0"
+      "version": "vbnet-profile-v10.18.0"
     },
     "web": {
       "plugin_name": "html-plugin",
-      "version": "web-profile-v3.24.0"
+      "version": "web-profile-v3.22.0"
     },
     "xml": {
       "plugin_name": "xml-plugin",
-      "version": "xml-profile-v2.16.0"
+      "version": "xml-profile-v2.15.0"
     },
     "yaml": {
       "language_profile": "YAML Analyzer",