diff --git a/.gitignore b/.gitignore
index 7024ef0..d4a95c2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -55,3 +55,4 @@ mercurial-1.6.2.tar.gz
 /mercurial-3.8.1.tar.gz
 /mercurial-4.0.1.tar.gz
 /mercurial-4.1.tar.gz
+/mercurial-4.2.tar.gz
diff --git a/sources b/sources
index 37fa649..24f93b2 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (mercurial-4.1.tar.gz) = 02e4aabe47473194961870909d4512a4be6814cccb51b727dfa9a34dd0aa5f92bfad7b03e6b58ce6c7e2531df52dac530f02264df28dcfc801036fe103cd4471
+SHA512 (mercurial-4.2.tar.gz) = bd03134a70fe0576a31d86cb6ca2d232b8f98bd9b038dc972a4d332889bb39c776f47d44ea9c45588d6e53590a8e3fbd48ca25238525919b8e44beab3d3c79cb