diff --git a/opus.spec b/opus.spec
index 2279aa6..70c64a2 100644
--- a/opus.spec
+++ b/opus.spec
@@ -7,10 +7,10 @@ Summary:  An audio codec for use in low-delay speech and audio communication
 License:  BSD
 URL:      https://www.opus-codec.org/
 
-Source0:  http://downloads.xiph.org/releases/%{name}/%{name}-%{version}%{?candidate:-%{candidate}}.tar.gz
+Source0:  https://ftp.osuosl.org/pub/xiph/releases/%{name}/%{name}-%{version}%{?candidate:-%{candidate}}.tar.gz
 # This is the final IETF Working Group RFC
-Source1:  http://tools.ietf.org/rfc/rfc6716.txt
-Source2:  http://tools.ietf.org/rfc/rfc8251.txt
+Source1:  https://tools.ietf.org/rfc/rfc6716.txt
+Source2:  https://tools.ietf.org/rfc/rfc8251.txt
 
 BuildRequires: make
 BuildRequires: gcc
@@ -43,7 +43,6 @@ autoreconf -ivf
         --enable-fixed-point
 %endif
 
-
 %make_build
 
 %install