diff --git a/Cargo.lock b/Cargo.lock
index 571a8df..1802dcd 100755
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -44,38 +44,22 @@ version = "2.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0ee1c47aaa256ecabcaea351eae4a9b01ef39ed810004e298d2511ed284b1525"
 
-[[package]]
-name = "once_cell"
-version = "1.5.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "13bd41f508810a131401606d54ac32a467c97172d74ba7662562ebba5ad07fa0"
-
 [[package]]
 name = "regex"
-version = "1.4.3"
+version = "1.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9251239e129e16308e70d853559389de218ac275b515068abc96829d05b948a"
+checksum = "957056ecddbeba1b26965114e191d2e8589ce74db242b6ea25fc4062427a5c19"
 dependencies = [
  "aho-corasick",
  "memchr",
  "regex-syntax",
- "thread_local",
 ]
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.22"
+version = "0.6.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b5eb417147ba9860a96cfe72a0b93bf88fee1744b5636ec99ab20c1aa9376581"
-
-[[package]]
-name = "thread_local"
-version = "1.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8018d24e04c95ac8790716a5987d0fec4f8b27249ffa0f7d33f1369bdfb88cbd"
-dependencies = [
- "once_cell",
-]
+checksum = "24d5f089152e60f62d28b835fbff2cd2e8dc0baf1ac13343bef92ab7eed84548"
 
 [[package]]
 name = "users"
diff --git a/src/main.rs b/src/main.rs
index 36676df..2346bfd 100755
--- a/src/main.rs
+++ b/src/main.rs
@@ -82,15 +82,15 @@ fn le_install(domain: String) {
     let output = Command::new("/usr/bin/certbot")
         .arg("--nginx")
         // Using ECDSA
-        .arg("--key-type")
-        .arg("ecdsa")
-        .arg("--elliptic-curve")
-        .arg("secp384r1")
-        // Using RSA
         //.arg("--key-type")
-        //.arg("rsa")
-        //.arg("--rsa-key-size")
-        //.arg("3072")
+        //.arg("ecdsa")
+        //.arg("--elliptic-curve")
+        //.arg("secp384r1")
+        // Using RSA
+        .arg("--key-type")
+        .arg("rsa")
+        .arg("--rsa-key-size")
+        .arg("3072")
         .arg("-d")
         .arg(&domain)
         .output()