diff --git a/.gitignore b/.gitignore
index 4955ce0..49299e8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -62,3 +62,4 @@ otp_src_R14A.tar.gz
 /otp-OTP-18.3.1.tar.gz
 /otp-OTP-18.3.2.tar.gz
 /otp-OTP-18.3.3.tar.gz
+/otp-OTP-18.3.4.tar.gz
diff --git a/sources b/sources
index 068a4eb..780d7be 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-34d812a7b27060659e592c33384ad11d  otp-OTP-18.3.3.tar.gz
+4debfc36d9392b85006033af38637274  otp-OTP-18.3.4.tar.gz