diff --git a/.gitignore b/.gitignore
index e31ee1e..fad5d3a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,4 @@
 /libpsl-0.15.0.tar.gz
 /libpsl-0.16.1.tar.gz
 /libpsl-0.17.0.tar.gz
+/libpsl-0.18.0.tar.gz
diff --git a/sources b/sources
index 1f20c31..a20676d 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (libpsl-0.17.0.tar.gz) = 10632d462a749c24a1de67daf33e28fad8e9f63531f5b43d399db09a2dbfb7c843162290f0279d80459018ab3465d4d128689e1740cd3334b1276c3d112fdff6
+SHA512 (libpsl-0.18.0.tar.gz) = ff61a6a49411ab6968cff820bccfd25b92790cd503ef2fce8e754a92af5bc9d43d224b36c60f815354022c384635eb47d56231301b36d639e86908e9cafb8cb7