diff --git a/deps.edn b/deps.edn
new file mode 100644
index 0000000..132e56c
--- /dev/null
+++ b/deps.edn
@@ -0,0 +1,3 @@
+{:deps {org.clojure/clojure {:mvn/version "1.8.0"}
+        org.tensorflow/tensorflow {:mvn/version  "1.15.0"}
+        environ {:mvn/version "1.1.0"}}}
\ No newline at end of file
diff --git a/project.clj b/project.clj
index a7fc565..4d47076 100644
--- a/project.clj
+++ b/project.clj
@@ -5,5 +5,5 @@
             :url "http://www.eclipse.org/legal/epl-v10.html"}
   :lein-release {:deploy-via :clojars}
   :dependencies [[org.clojure/clojure "1.8.0"]
-                 [org.tensorflow/tensorflow  "1.2.0"]
+                 [org.tensorflow/tensorflow  "1.15.0"]
                  [environ "1.1.0"]])
diff --git a/src/clojure_tensorflow/utils.clj b/src/clojure_tensorflow/utils.clj
index dd336fc..b2c7cf5 100644
--- a/src/clojure_tensorflow/utils.clj
+++ b/src/clojure_tensorflow/utils.clj
@@ -43,7 +43,7 @@
   (cond
     (coll? v)
     (if (coll? (first v))
-      (to-array (map tf-vals v))
+      (into-array (map tf-vals v))
       (case (.getName (type (first v)))
         "java.lang.Long" (int-array v)
         "java.lang.Int" (int-array v)