diff --git a/HISTORY.md b/HISTORY.md
index 8c2108e09..d9420866d 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,7 +1,7 @@
 
 # Release history
 
-### main branch
+### Aider v0.55.0
 
 - Only print the pip command when self updating on Windows, without running it.
 - Converted many error messages to warning messages.
diff --git a/aider/website/HISTORY.md b/aider/website/HISTORY.md
index a19fb9e25..fdc5e1f10 100644
--- a/aider/website/HISTORY.md
+++ b/aider/website/HISTORY.md
@@ -16,7 +16,7 @@ cog.out(text)
 
 # Release history
 
-### main branch
+### Aider v0.55.0
 
 - Only print the pip command when self updating on Windows, without running it.
 - Converted many error messages to warning messages.