diff --git a/.hgtags b/.hgtags
index ef68adc..a1e6300 100644
--- a/.hgtags
+++ b/.hgtags
@@ -465,3 +465,4 @@
 bfbc52374adcbf2f9060afd62de940f6fab3bba5 release-1.21.2
 2217a9c1d0b86026f22700b3c089545db1964f55 release-1.21.3
 39be8a682c58308d9399cddd57e37f9fdb7bdf3e release-1.21.4
+d986378168fd4d70e0121cabac274c560cca9bdf release-1.21.5