diff --git a/CHANGELOG.md b/CHANGELOG.md
index 166fceb..5f75540 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Holiday definitions
 
+## 5.7.4
+
+* Fix missing GR entry in index.yaml
+
 ## 5.7.3
 
 * Fix stupid naming problem in Greece yaml file
diff --git a/index.yaml b/index.yaml
index e1f48a6..6ec5f4b 100644
--- a/index.yaml
+++ b/index.yaml
@@ -26,6 +26,7 @@ defs:
   FR: ['fr.yaml']
   GB: ['gb.yaml']
   GE: ['ge.yaml']
+  GR: ['gr.yaml']
   HR: ['hr.yaml']
   HK: ['hk.yaml']
   HU: ['hu.yaml']