diff --git a/changelog.txt b/changelog.txt
index 4104ef1..0896804 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,6 +1,6 @@
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 Version: 3.3.1
-Date: ????
+Date: 2026-08-12
   Changes:
     - Fixed that shunt inserters would attempt to burn steam. Resolves https://github.com/pyanodon/pybugreports/issues/1550
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