diff --git a/deps.edn b/deps.edn
index f9552e5..8fe52db 100644
--- a/deps.edn
+++ b/deps.edn
@@ -6,7 +6,8 @@
         org.slf4j/slf4j-simple {:mvn/version "2.0.7"}
         org.owasp/dependency-check-core {:mvn/version "8.4.0"}
         rm-hull/table {:mvn/version "0.7.1"}
-        trptcolin/versioneer {:mvn/version "0.2.0"}}
+        trptcolin/versioneer {:mvn/version "0.2.0"}
+        org.clojure/tools.deps {:mvn/version "0.18.1354"}}
  :mvn/repos {"central" {:url "https://repo1.maven.org/maven2/"}
              "clojars" {:url "https://repo.clojars.org/"}}
  :tools/usage {:ns-default nvd.task}
diff --git a/src/nvd/task.clj b/src/nvd/task.clj
index cdfc258..a6de521 100644
--- a/src/nvd/task.clj
+++ b/src/nvd/task.clj
@@ -23,9 +23,25 @@
 (ns nvd.task
   "Clojure CLI tool entry points: `check`."
   (:require
-   [nvd.task.check :refer [-main]]))
+    [clojure.tools.deps :as deps]
+    [clojure.tools.deps.util.session :as session]
+    [nvd.task.check :refer [-main]]))
+
+(defn- get-classpath [{:keys [aliases]}]
+  (let [{:keys [root-edn user-edn project-edn]} (deps/find-edn-maps "deps.edn")
+        master-edn (deps/merge-edns [root-edn user-edn project-edn])
+        aliases (or aliases [])
+        combined-aliases (deps/combine-aliases master-edn aliases)
+        basis (session/with-session
+                (deps/calc-basis master-edn {:resolve-args   (merge combined-aliases {:trace true})
+                                             :classpath-args combined-aliases}))]
+    (deps/join-classpath (:classpath-roots basis))))
 
 (defn check
-  "Arguments: `:config-filename` (optional), `:classpath` (required)."
-  [{:keys [config-filename classpath]}]
-  (-main (or config-filename "") classpath))
+  "Arguments:
+    `:config-filename` (optional),
+    `:classpath` (optional, defaults to the classpath of deps.edn in the current directory)
+    `:aliases` (optional, defaults to [])."
+  [{:keys [config-filename classpath] :as opts}]
+  (-main (or config-filename "") (or classpath
+                                     (get-classpath opts))))
diff --git a/test/nvd/tools_deps_conflict_test.clj b/test/nvd/tools_deps_conflict_test.clj
new file mode 100644
index 0000000..406fbd2
--- /dev/null
+++ b/test/nvd/tools_deps_conflict_test.clj
@@ -0,0 +1,51 @@
+(ns nvd.tools-deps-conflict-test
+  (:require [clojure.set :as set]
+            [clojure.test :as t]
+            [clojure.tools.deps :as deps]
+            [clojure.edn :as edn]
+            [clojure.tools.deps.util.session :as session]))
+
+(defn get-libs
+  [deps]
+  (let [master-edn (merge {:mvn/repos {"central" {:url "https://repo1.maven.org/maven2/"}, "clojars" {:url "https://repo.clojars.org/"}}}
+                          {:deps deps})
+        combined-aliases (deps/combine-aliases master-edn [])
+        basis (session/with-session
+                (deps/calc-basis master-edn {:resolve-args   (merge combined-aliases {:trace true})
+                                             :classpath-args combined-aliases}))
+        libs (:libs basis)]
+    (into (sorted-map) libs)))
+
+(defn show-diff [lib]
+  (let [base-deps (-> (edn/read-string (slurp "deps.edn"))
+                      :deps)
+        new-dep (get-libs {lib (get base-deps lib)})
+        base-deps (get-libs (dissoc base-deps lib))
+        td-set (into #{} (keys new-dep))
+        base-set (into #{} (keys base-deps))]
+    (doseq [shared-lib (into (sorted-set) (set/intersection td-set base-set))]
+      (when-not (= (get-in new-dep [shared-lib :mvn/version])
+                   (get-in base-deps [shared-lib :mvn/version]))
+        (println shared-lib
+                 "deps.edn:" (get-in base-deps [shared-lib :mvn/version])
+                 "vs"
+                 (str lib ":") (get-in new-dep [shared-lib :mvn/version]))))))
+
+(comment
+  (show-diff 'org.clojure/tools.deps))
+
+(t/deftest tools-deps-conflict-test
+  (let [td-deps (get-libs {'org.clojure/tools.deps {:mvn/version "0.18.1354"}})
+        base-deps (get-libs (-> (edn/read-string (slurp "deps.edn"))
+                                :deps
+                                (dissoc 'org.clojure/tools.deps)))
+        td-set (into #{} (keys td-deps))
+        base-set (into #{} (keys base-deps))]
+    (doseq [shared-lib (into (sorted-set) (set/intersection td-set base-set))]
+      (when-not (= (get-in td-deps [shared-lib :mvn/version])
+                   (get-in base-deps [shared-lib :mvn/version]))
+        (println shared-lib
+                 (get-in base-deps [shared-lib :mvn/version])
+                 "vs"
+                 (get-in td-deps [shared-lib :mvn/version]))))))
+