diff --git a/CHANGELOG.md b/CHANGELOG.md
index 092c633..d0550f8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.1.3] - 2026-04-05
+
+### Fixed
+- `sandbox/upload` no longer returns `{:error "Input/uuid must be a string"}` — the storage response was parsed with keyword keys (`:uuid`) while the code looked up the string key `"uuid"`, always yielding `nil`. Changed `:as :json` to `:as :json-string-keys` in `upload-to-storage` so the UUID is correctly extracted and forwarded to `pullDirectory`.
+
 ## [0.1.2] - 2026-04-05
 
 ### Added
@@ -41,6 +46,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Token resolved from `POCKETENV_TOKEN` env var or `~/.pocketenv/token.json`
 - MIT License
 
+[0.1.3]: https://github.com/pocketenv-io/pocketenv-clojure/releases/tag/v0.1.3
 [0.1.2]: https://github.com/pocketenv-io/pocketenv-clojure/releases/tag/v0.1.2
 [0.1.1]: https://github.com/pocketenv-io/pocketenv-clojure/releases/tag/v0.1.1
 [0.1.0]: https://github.com/pocketenv-io/pocketenv-clojure/releases/tag/v0.1.0
diff --git a/README.md b/README.md
index cef1f16..6a7c864 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ Clojure SDK for the [Pocketenv](https://pocketenv.io) sandbox platform.
 Add to your `deps.edn`:
 
 ```clojure
-{:deps io.pocketenv/pocketenv {:mvn/version "0.1.2-SNAPSHOT"}}
+{:deps io.pocketenv/pocketenv {:mvn/version "0.1.3-SNAPSHOT"}}
 ```
 
 ## Configuration
diff --git a/build.clj b/build.clj
index 1d4bca5..5110570 100644
--- a/build.clj
+++ b/build.clj
@@ -4,7 +4,7 @@
             [deps-deploy.deps-deploy :as dd]))
 
 (def lib 'io.pocketenv/pocketenv)
-(def version "0.1.2-SNAPSHOT")
+(def version "0.1.3-SNAPSHOT")
 #_ ; alternatively, use MAJOR.MINOR.COMMITS:
   (def version (format "1.0.%s" (b/git-count-revs nil)))
 (def class-dir "target/classes")
diff --git a/src/pocketenv_io/copy.clj b/src/pocketenv_io/copy.clj
index 8e6c7e6..9f1066e 100644
--- a/src/pocketenv_io/copy.clj
+++ b/src/pocketenv_io/copy.clj
@@ -119,7 +119,7 @@
                                                    :filename  "archive.tar.gz"
                                                    :mime-type "application/gzip"}]
                                :headers          {"Authorization" (str "Bearer " t)}
-                               :as               :json
+                               :as               :json-string-keys
                                :throw-exceptions false})]
           (if (<= 200 (:status resp) 299)
             {:ok (get-in resp [:body "uuid"])}