diff --git a/changelog.md b/changelog.md
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--- a/changelog.md
+++ b/changelog.md
@@ -1,6 +1,6 @@
 # Revision history for pandoc
 
-## pandoc 2.18 (2022-04-22)
+## pandoc 2.18 (2022-04-04)
 
   * New input formats: `endnotexml` (EndNote XML bibliography),
     `ris` (RIS bibliography).