diff --git a/.gitignore b/.gitignore
index 39ac1ff..60d7a74 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@
 /pynetdicom-1.5.4.tar.gz
 /pynetdicom-1.5.5.tar.gz
 /pynetdicom-1.5.6.tar.gz
+/pynetdicom-1.5.7.tar.gz
diff --git a/sources b/sources
index 24902c3..5679925 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (pynetdicom-1.5.6.tar.gz) = def669525c12a2b7555708533fff5c3ab6e016d8a4b39dcb4ebd4cea1c3681177aa6dab978c127b5ce9806b38dba9161bd062bf6c0c63ef7699b022a54293491
+SHA512 (pynetdicom-1.5.7.tar.gz) = 84f88b3c5dcdb780489e13585fc42293db2372470953cc4bc3586c3661a01eb3a778aac0241c17c21cd1293fb888a5e3bd45b38344258ba4ecbfb2d69168834d