diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 709eaf6..b5d735a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,6 +17,7 @@ jobs:
       fail-fast: false
       matrix:
         version:
+          - '1.3'
           - '1.6'
           - '1' # automatically expands to the latest stable 1.x release of Julia.
           - 'nightly'
diff --git a/Project.toml b/Project.toml
index d366c67..d578dd5 100644
--- a/Project.toml
+++ b/Project.toml
@@ -13,7 +13,7 @@ NetworkOptions = "ca575930-c2e3-43a9-ace4-1e988b2c1908"
 ArgTools = "1.1"
 LibCURL = "0.6"
 NetworkOptions = "1.2"
-julia = "1.6"
+julia = "1.3"
 
 [extras]
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"