diff --git a/.github/workflows/documentation-validation.yaml b/.github/workflows/documentation-validation.yaml
index e18db33..fbf47ca 100644
--- a/.github/workflows/documentation-validation.yaml
+++ b/.github/workflows/documentation-validation.yaml
@@ -16,7 +16,7 @@ jobs:
     permissions:
       contents: read
     env:
-      GO_VERSION: 1.21.3
+      GO_VERSION: 1.26.3
     steps:
       - name: Set up Go ${{ env.GO_VERSION }}
         uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
diff --git a/CHANGELOG.md b/CHANGELOG.md
index bd1b7a9..2108db1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ Instead this file uses a date-based structure.
 ### Fixed
 
 - `update-chart` now uses the bare chart name instead of `helm/{{chart-name}}` since a new [devctl update](https://github.com/giantswarm/devctl/pull/1837) broke the current workflow.
+- Update GO_VERSION on documentation-validation workflow.
 
 ## 2026-05-27