cmd/sgblog/http.go  | 9 ++++++---
 internal/version.go | 2 +-

diff --git a/cmd/sgblog/http.go b/cmd/sgblog/http.go
index ede2018cde5dd7b3b870fe260e4363c38e4ea0c2a3bce9986e718b623049df7b..e8e320807bc064da53a5b367026de08488a9fe12385ffcbdc5e4d89d68222ca7 100644
--- a/cmd/sgblog/http.go
+++ b/cmd/sgblog/http.go
@@ -127,13 +127,16 @@ func lineURLizeInTemplate(urlPrefix, line any) string {
 	return lineURLize(urlPrefix.(string), line.(string))
 }
 
-func startHeader(etag hash.Hash, zstded bool) string {
+func startHeader(etag hash.Hash, zstded bool, lastModified time.Time) string {
 	lines := []string{
 		"Content-Type: text/html; charset=utf-8",
 		"ETag: " + etagString(etag),
 	}
 	if zstded {
 		lines = append(lines, "Content-Encoding: zstd")
+	}
+	if !lastModified.IsZero() {
+		lines = append(lines, "Last-Modified: "+lastModified.Format(http.TimeFormat))
 	}
 	lines = append(lines, "")
 	lines = append(lines, "")
@@ -351,7 +354,7 @@ 			entry.Topics = sgblog.ParseTopics(entry.TopicsRaw)
 			entries[i] = entry
 		}
 		offsetPrev := max(offset-PageEntries, 0)
-		os.Stdout.Write([]byte(startHeader(etagHash, zstdWriter != nil)))
+		os.Stdout.Write([]byte(startHeader(etagHash, zstdWriter != nil, time.Time{})))
 		err = TmplHTMLIndex.Execute(out, struct {
 			T                *spreak.Localizer
 			Version          string
@@ -747,7 +750,7 @@ 		if len(notesRaw) > 0 {
 			notesLines = strings.Split(string(notesRaw), "\n")
 		}
 
-		os.Stdout.Write([]byte(startHeader(etagHash, zstdWriter != nil)))
+		os.Stdout.Write([]byte(startHeader(etagHash, zstdWriter != nil, commit.Author.When)))
 		err = TmplHTMLEntry.Execute(out, struct {
 			T               *spreak.Localizer
 			Version         string
diff --git a/internal/version.go b/internal/version.go
index e1e7ea7cf4be9f469ae6c1951e317a146a325813b3740c111d1fed45e3470908..020e8678ce9d582b0a7c45d3387bfad3d3b8ed0144d0e855fa0d560407412f20 100644
--- a/internal/version.go
+++ b/internal/version.go
@@ -1,3 +1,3 @@
 package internal
 
-const Version = "0.41.0"
+const Version = "0.42.0"