diff --git a/.gitignore b/.gitignore
index 208b5c0..9a659d4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -164,3 +164,12 @@ cython_debug/
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 #.idea/
+
+
+# certificate files
+
+# Ignore all certificates in this directory
+*.pem
+*.key
+*.csr
+