diff --git a/go.mod b/go.mod
index 609acc7..acb6d6f 100644
--- a/go.mod
+++ b/go.mod
@@ -1,5 +1,3 @@
 module tildegit.org/sloum/bombadillo
 
-go 1.12
-
-require tildegit.org/sloum/mailcap v0.0.0-20190706214029-b787a49e9db2
+go 1.11
diff --git a/go.sum b/go.sum
deleted file mode 100644
index 60768f8..0000000
--- a/go.sum
+++ /dev/null
@@ -1,2 +0,0 @@
-tildegit.org/sloum/mailcap v0.0.0-20190706214029-b787a49e9db2 h1:tAPIFBpXwOq1Ytxk8aGsDjCutnwUC01BVkK77QS1bdU=
-tildegit.org/sloum/mailcap v0.0.0-20190706214029-b787a49e9db2/go.mod h1:m4etAw9DbXsdanDUNS8oERhL+7y4II82ZLHWzw2yibg=