diff --git a/README.md b/README.md
index 198b46b..6cacf84 100644
--- a/README.md
+++ b/README.md
@@ -58,7 +58,7 @@ dokku postgres:create lolipop
 
 # you can also specify custom environment
 # variables to start the postgres service
-# in semi-colon separated forma
+# in semi-colon separated form
 export POSTGRES_CUSTOM_ENV="USER=alpha;HOST=beta"
 dokku postgres:create lolipop
 
diff --git a/tests/test_helper.bash b/tests/test_helper.bash
index fac5903..4bd8c7f 100644
--- a/tests/test_helper.bash
+++ b/tests/test_helper.bash
@@ -11,9 +11,9 @@ export PLUGIN_CORE_AVAILABLE_PATH="$PLUGIN_PATH"
 export POSTGRES_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/fixtures"
 export PLUGIN_DATA_ROOT="$POSTGRES_ROOT"
 if [[ "$(uname)" == "Darwin" ]]; then
-  export PLUGN_URL="https://github.com/dokku/plugn/releases/download/v0.2.1/plugn_0.2.1_darwin_x86_64.tgz"
+  export PLUGN_URL="https://github.com/dokku/plugn/releases/download/v0.3.0/plugn_0.3.0_darwin_x86_64.tgz"
 else
-  export PLUGN_URL="https://github.com/dokku/plugn/releases/download/v0.2.1/plugn_0.2.1_linux_x86_64.tgz"
+  export PLUGN_URL="https://github.com/dokku/plugn/releases/download/v0.3.0/plugn_0.3.0_linux_x86_64.tgz"
 fi
 
 mkdir -p "$PLUGIN_DATA_ROOT"