project might now run ...

deps.edn

@@ -1 +1,6 @@
-{:deps {}}
+{:paths ["main/src"]
+ :deps {}
+ :aliases {:1.8 {:override-deps {org.clojure/clojure {:mvn/version "1.8.0"}}}
+           :1.9 {:override-deps {org.clojure/clojure {:mvn/version "1.9.0"}}}
+           :test {:paths ["main/src" "test/src"] 
+                  :extra-deps {org.clojure/core.cache {:mvn/version "0.7.1"}}}

project.clj

@@ -12,6 +12,7 @@
                         ["releases" :clojars]]
   :plugins [[lein-tools-deps "0.4.5"]]
   :middleware [lein-tools-deps.plugin/resolve-dependencies-with-deps-edn]
+  :lein-tools-deps/config {:config-files [:install :user :project]}
   :profiles {:dev {:source-paths ["test/src"]
                    :resource-paths ["test/resources"]
                    :dependencies