diff --git a/.gitignore b/.gitignore
index ca61de0..01c6261 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@
 /ecdsa-0.16.0.tar.gz
 /ecdsa-0.16.1.tar.gz
 /ecdsa-0.17.0.tar.gz
+/ecdsa-0.18.0.tar.gz
diff --git a/sources b/sources
index c5d3d89..3b580c0 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (ecdsa-0.17.0.tar.gz) = 23acf993ce4f7f832674a3b70ab870c20172816e27adc836d4c6a876e72a488a830895d63ab6af67cc7cbc83c71f7097d0d530bf67d24c84e69e9fa87031f6fd
+SHA512 (ecdsa-0.18.0.tar.gz) = f26dbeccd8e6ec832405d419b7244ca97b43a2811513493913a4f2f2fd1d2f453068fe0ba7b90b972f42a0d7b9834212fbd4d4559475cffeb1d80075fa954d78