diff --git a/exporter/src/app/config.cljs b/exporter/src/app/config.cljs
index 76da48a1c..eb65382a4 100644
--- a/exporter/src/app/config.cljs
+++ b/exporter/src/app/config.cljs
@@ -7,6 +7,7 @@
 (ns app.config
   (:refer-clojure :exclude [get])
   (:require
+   [app.common.data :as d]
    ["process" :as process]
    [cljs.pprint]
    [cuerdas.core :as str]
@@ -35,20 +36,27 @@
   [prefix]
   (let [env    (unchecked-get process "env")
         kwd    (fn [s] (-> (str/kebab s) (str/keyword)))
-        prefix (str prefix "-")
+        prefix (str prefix "_")
         len    (count prefix)]
     (reduce (fn [res key]
-              (cond-> res
-                (str/starts-with? key prefix)
-                (assoc (kwd (subs key len))
-                       (unchecked-get env key))))
+              (let [val (unchecked-get env key)
+                    key (str/lower key)]
+                (cond-> res
+                  (str/starts-with? key prefix)
+                  (assoc (kwd (subs key len)) val))))
             {}
             (js/Object.keys env))))
 
+(defn- prepare-config
+  []
+  (let [env  (read-env "penpot")
+        env  (d/without-nils env)
+        data (merge defaults env)]
+    (us/conform ::config data)))
+
 (def config
-  (atom (->> (read-env "penpot")
-             (merge defaults)
-             (us/conform ::config))))
+  (atom (prepare-config)))
+
 
 (defn get
   "A configuration getter."
diff --git a/exporter/yarn.lock b/exporter/yarn.lock
index a122fe7ac..43907db23 100644
--- a/exporter/yarn.lock
+++ b/exporter/yarn.lock
@@ -11,9 +11,9 @@
     regenerator-runtime "^0.13.4"
 
 "@types/node@*":
-  version "15.0.1"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-15.0.1.tgz#ef34dea0881028d11398be5bf4e856743e3dc35a"
-  integrity sha512-TMkXt0Ck1y0KKsGr9gJtWGjttxlZnnvDtphxUOSd0bfaR6Q1jle+sPvrzNR1urqYTWMinoKvjKfXUGsumaO1PA==
+  version "15.0.2"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-15.0.2.tgz#51e9c0920d1b45936ea04341aa3e2e58d339fb67"
+  integrity sha512-p68+a+KoxpoB47015IeYZYRrdqMUcpbK8re/zpFB8Ld46LHC1lPEbp3EXgkEhAYEcPvjJF6ZO+869SQ0aH1dcA==
 
 "@types/yauzl@^2.9.1":
   version "2.9.1"
@@ -272,9 +272,9 @@ cookies@~0.8.0:
     keygrip "~1.1.0"
 
 core-js-pure@^3.0.0:
-  version "3.11.2"
-  resolved "https://registry.yarnpkg.com/core-js-pure/-/core-js-pure-3.11.2.tgz#10e3b35788c00f431bc0d601d7551475ec3e792c"
-  integrity sha512-DQxdEKm+zFsnON7ZGOgUAQXBt1UJJ01tOzN/HgQ7cNf0oEHW1tcBLfCQQd1q6otdLu5gAdvKYxKHAoXGwE/kiQ==
+  version "3.12.1"
+  resolved "https://registry.yarnpkg.com/core-js-pure/-/core-js-pure-3.12.1.tgz#934da8b9b7221e2a2443dc71dfa5bd77a7ea00b8"
+  integrity sha512-1cch+qads4JnDSWsvc7d6nzlKAippwjUlf6vykkTLW53VSV+NkE6muGBToAjEA8pG90cSfcud3JgVmW2ds5TaQ==
 
 core-util-is@~1.0.0:
   version "1.0.2"
@@ -492,9 +492,9 @@ get-stream@^5.1.0:
     pump "^3.0.0"
 
 glob@^7.1.3:
-  version "7.1.6"
-  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.6.tgz#141f33b81a7c2492e125594307480c46679278a6"
-  integrity sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==
+  version "7.1.7"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.7.tgz#3b193e9233f01d42d0b3f78294bbeeb418f94a90"
+  integrity sha512-OvD9ENzPLbegENnYP5UUfJIirTg4+XwMWGaQfQTY0JenxNvvIKP3U3/tAQSPIu/lHxXYSZmpXlUHeqAIdKzBLQ==
   dependencies:
     fs.realpath "^1.0.0"
     inflight "^1.0.4"
@@ -618,9 +618,9 @@ inherits@2.0.3:
   integrity sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=
 
 is-generator-function@^1.0.7:
-  version "1.0.8"
-  resolved "https://registry.yarnpkg.com/is-generator-function/-/is-generator-function-1.0.8.tgz#dfb5c2b120e02b0a8d9d2c6806cd5621aa922f7b"
-  integrity sha512-2Omr/twNtufVZFr1GhxjOMFPAj2sjc/dKaIqBhvo4qciXfJmITGH6ZGd8eZYNHza8t1y0e01AuqRhJwfWp26WQ==
+  version "1.0.9"
+  resolved "https://registry.yarnpkg.com/is-generator-function/-/is-generator-function-1.0.9.tgz#e5f82c2323673e7fcad3d12858c83c4039f6399c"
+  integrity sha512-ZJ34p1uvIfptHCN7sFTjGibB9/oBg17sHqzDLfuwhvmN/qLVvIQXRQ8licZQ35WJ8KuEQt/etnnzQFI9C9Ue/A==
 
 isarray@^1.0.0, isarray@~1.0.0:
   version "1.0.0"
@@ -982,9 +982,9 @@ puppeteer-cluster@^0.22.0:
     debug "^4.1.1"
 
 puppeteer@^9.1.0:
-  version "9.1.0"
-  resolved "https://registry.yarnpkg.com/puppeteer/-/puppeteer-9.1.0.tgz#0530ed1f595088eefd078c8f1f7618d00f216a56"
-  integrity sha512-+BWwEKYQ9oBTUcDYwfgnVPlHSEYqD4sXsMqQf70vSlTE6YIuXujc7zKgO3FyZNJYVrdrUppy/LLwGF1IRacQMQ==
+  version "9.1.1"
+  resolved "https://registry.yarnpkg.com/puppeteer/-/puppeteer-9.1.1.tgz#f74b7facf86887efd6c6b9fabb7baae6fdce012c"
+  integrity sha512-W+nOulP2tYd/ZG99WuZC/I5ljjQQ7EUw/jQGcIb9eu8mDlZxNY2SgcJXTLG9h5gRvqA3uJOe4hZXYsd3EqioMw==
   dependencies:
     debug "^4.1.0"
     devtools-protocol "0.0.869402"