diff --git a/scripts/download_pdb_mmcif.sh b/scripts/download_pdb_mmcif.sh
index 051bf8d4b..b0754f745 100755
--- a/scripts/download_pdb_mmcif.sh
+++ b/scripts/download_pdb_mmcif.sh
@@ -58,4 +58,4 @@ done
 # Delete empty download directory structure.
 find "${RAW_DIR}" -type d -empty -delete
 
-aria2c "ftp://ftp.wwpdb.org/pub/pdb/data/status/obsolete.dat" --dir="${ROOT_DIR}"
+aria2c "https://files.wwpdb.org/pub/pdb/data/status/obsolete.dat" --dir="${ROOT_DIR}"
diff --git a/scripts/download_pdb_seqres.sh b/scripts/download_pdb_seqres.sh
index 5e42b5ddb..bef1a9ce9 100755
--- a/scripts/download_pdb_seqres.sh
+++ b/scripts/download_pdb_seqres.sh
@@ -31,7 +31,7 @@ fi
 
 DOWNLOAD_DIR="$1"
 ROOT_DIR="${DOWNLOAD_DIR}/pdb_seqres"
-SOURCE_URL="ftp://ftp.wwpdb.org/pub/pdb/derived_data/pdb_seqres.txt"
+SOURCE_URL="https://files.wwpdb.org/pub/pdb/derived_data/pdb_seqres.txt"
 BASENAME=$(basename "${SOURCE_URL}")
 
 mkdir --parents "${ROOT_DIR}"