diff --git a/env-builder-data/build/script/packet/ogg-1.3.2.sh b/env-builder-data/build/script/packet/ogg-1.3.2.sh
index 75b199f..19184c5 100644
--- a/env-builder-data/build/script/packet/ogg-1.3.2.sh
+++ b/env-builder-data/build/script/packet/ogg-1.3.2.sh
@@ -2,6 +2,6 @@ DEPS=""
 
 PK_DIRNAME="libogg-1.3.2"
 PK_ARCHIVE="$PK_DIRNAME.tar.gz"
-PK_URL="https://downloads.xiph.org/releases/ogg/$PK_ARCHIVE"
+PK_URL="http://ftp.osuosl.org/pub/xiph/releases/ogg/$PK_ARCHIVE"
 
 source $INCLUDE_SCRIPT_DIR/inc-pkall-default.sh
diff --git a/env-builder-data/build/script/packet/theora-1.1.1.sh b/env-builder-data/build/script/packet/theora-1.1.1.sh
index bbf280c..6cb8bb4 100644
--- a/env-builder-data/build/script/packet/theora-1.1.1.sh
+++ b/env-builder-data/build/script/packet/theora-1.1.1.sh
@@ -2,7 +2,7 @@ DEPS="ogg-1.3.2"
 
 PK_DIRNAME="libtheora-1.1.1"
 PK_ARCHIVE="$PK_DIRNAME.tar.bz2"
-PK_URL="https://downloads.xiph.org/releases/theora/$PK_ARCHIVE"
+PK_URL="http://ftp.osuosl.org/pub/xiph/releases/theora/$PK_ARCHIVE"
 
 PK_CONFIGURE_OPTIONS="--disable-examples"
 
diff --git a/env-builder-data/build/script/packet/vorbis-1.3.5.sh b/env-builder-data/build/script/packet/vorbis-1.3.5.sh
index 287f93b..6f539a2 100644
--- a/env-builder-data/build/script/packet/vorbis-1.3.5.sh
+++ b/env-builder-data/build/script/packet/vorbis-1.3.5.sh
@@ -2,6 +2,6 @@ DEPS="ogg-1.3.2"
 
 PK_DIRNAME="libvorbis-1.3.5"
 PK_ARCHIVE="$PK_DIRNAME.tar.gz"
-PK_URL="https://downloads.xiph.org/releases/vorbis/$PK_ARCHIVE"
+PK_URL="http://ftp.osuosl.org/pub/xiph/releases/vorbis/$PK_ARCHIVE"
 
 source $INCLUDE_SCRIPT_DIR/inc-pkall-default.sh