diff --git a/DOCS.md b/DOCS.md
index 512694a33..a8e7c0016 100644
--- a/DOCS.md
+++ b/DOCS.md
@@ -9,6 +9,7 @@ title: hledger docs
 [Installation Guide](INSTALL.html)\
 [Release Notes](NEWS.html)\
 **[User Manual](MANUAL.html)** (and past versions:
+[0.21](0.21/MANUAL.html),
 [0.20](0.20/MANUAL.html),
 [0.19](0.19/MANUAL.html),
 [0.18](0.18/MANUAL.html))\
diff --git a/Makefile b/Makefile
index b21ed78b5..c918f6e7c 100644
--- a/Makefile
+++ b/Makefile
@@ -572,7 +572,10 @@ viewsite: site
 
 # ensure some old doc versions are in place:
 
-oldsource: site/0.20 site/0.19 site/0.18
+oldsource: site/0.21 site/0.20 site/0.19 site/0.18
+
+site/0.21:
+	git archive --prefix site/0.21/ tags/0.21.3 '*.md' | tar xf -
 
 site/0.20:
 	git archive --prefix site/0.20/ tags/0.20 '*.md' | tar xf -
diff --git a/site/site.hs b/site/site.hs
index b10e8c01d..28d194d29 100755
--- a/site/site.hs
+++ b/site/site.hs
@@ -23,7 +23,7 @@ main = do
         route   idRoute
         compile compressCssCompiler
     match "templates/*" $ compile templateCompiler
-    match ("*.md" .||. "0.20/*.md" .||. "0.19/*.md" .||. "0.18/*.md") $ do
+    match ("*.md" .||. "0.21/*.md" .||. "0.20/*.md" .||. "0.19/*.md" .||. "0.18/*.md") $ do
         route   $ setExtension "html"
         compile $
           pandocCompilerWith