diff --git a/internal/puzzles/constants.go b/internal/puzzles/constants.go
index 4505f208..2affe5e3 100644
--- a/internal/puzzles/constants.go
+++ b/internal/puzzles/constants.go
@@ -52,6 +52,7 @@ const (
 	Year2019 // 2019
 	Year2020 // 2020
 	Year2021 // 2021
+	Year2022 // 2022
 
 	yearSentinel
 )
diff --git a/internal/puzzles/year_string.go b/internal/puzzles/year_string.go
index aff61cec..3f8c669d 100644
--- a/internal/puzzles/year_string.go
+++ b/internal/puzzles/year_string.go
@@ -16,12 +16,13 @@ func _() {
 	_ = x[Year2019-5]
 	_ = x[Year2020-6]
 	_ = x[Year2021-7]
-	_ = x[yearSentinel-8]
+	_ = x[Year2022-8]
+	_ = x[yearSentinel-9]
 }
 
-const _Year_name = "yearUnknown2015201620172018201920202021yearSentinel"
+const _Year_name = "yearUnknown20152016201720182019202020212022yearSentinel"
 
-var _Year_index = [...]uint8{0, 11, 15, 19, 23, 27, 31, 35, 39, 51}
+var _Year_index = [...]uint8{0, 11, 15, 19, 23, 27, 31, 35, 39, 43, 55}
 
 func (i Year) String() string {
 	if i < 0 || i >= Year(len(_Year_index)-1) {