diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index fa9aede..bc73694 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -18,7 +18,7 @@ jobs:
       fail-fast: false
       matrix:
         version:
-          - '1.0'
+          - '1.3'
           - '1'
         os:
           - ubuntu-latest
diff --git a/Project.toml b/Project.toml
index 4343c9a..814fafb 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,16 +1,18 @@
 name = "MMTF"
 uuid = "259c3a9c-12c3-507f-b21f-68ecc40fcda4"
 authors = ["Joel S <joel.programmer@outlook.com>"]
-version = "0.1.1"
+version = "1.0.0"
 
 [deps]
 CodecZlib = "944b1d66-785c-5afd-91f1-9de20f533193"
+Downloads = "f43a241f-c20a-4ad4-852c-f6b1247861c6"
 MsgPack = "99f44e22-a591-53d1-9472-aa23ef4bd671"
 
 [compat]
 CodecZlib = "0.5, 0.6, 0.7"
+Downloads = "1"
 MsgPack = "0.2, 1"
-julia = "0.7, 1"
+julia = "1.3"
 
 [extras]
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
diff --git a/src/api.jl b/src/api.jl
index 333f14f..22a90ee 100644
--- a/src/api.jl
+++ b/src/api.jl
@@ -1,7 +1,8 @@
 include("codec.jl")
 
-using MsgPack
 using CodecZlib
+using Downloads
+using MsgPack
 
 export decodedata,encodedata,parsemmtf,writemmtf,fetchmmtf
 
@@ -150,6 +151,6 @@ pdbid: ID of the PDB file to be fetched and decoded.
 """
 function fetchmmtf(pdbid)
     tempfile = tempname()
-    download("$(BASE_URL)/$(pdbid).mmtf.gz",tempfile)
+    Downloads.download("$(BASE_URL)/$(pdbid).mmtf.gz",tempfile)
     parsemmtf(tempfile,gzip=true)
-end
\ No newline at end of file
+end