diff --git a/CHANGELOG.md b/CHANGELOG.md
index fc33a82..84b2ab8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Holiday definitions
 
+## 5.6.1
+
+* Fix `de` holiday for 'Tag der Deutschen Einheit' to correctly use `year_ranges` syntax
+
 ## 5.6.0
 
 * Update `ca`, `ca_bc, `ca_nt, `ca_pe`, ca_yt` for national truth and reconciliation day (thanks to https://github.com/danger-ranger)
diff --git a/de.yaml b/de.yaml
index a9bc62f..5c0535e 100644
--- a/de.yaml
+++ b/de.yaml
@@ -111,8 +111,9 @@ months:
     regions: [de]
     mday: 17
     year_ranges:
-      from: 1954
-      until: 1990
+      between:
+        start: 1954
+        end: 1990
   8:
   - name: Mariä Himmelfahrt
     regions: [de_by_cath, de_by_augsburg, de_sl]