diff --git a/env.sample b/env.sample
index 65730fd..ca20f90 100644
--- a/env.sample
+++ b/env.sample
@@ -9,3 +9,11 @@ fastqueue_server_reload='true'
 fastqueue_server_num_workers='1'
 
 fastqueue_database_url='postgresql+psycopg2://fastqueue:fastqueue@localhost:5432/fastqueue-test'
+
+fastqueue_min_ack_deadline_seconds='1'
+fastqueue_max_ack_deadline_seconds='600'
+fastqueue_min_message_retention_seconds='600'
+fastqueue_max_message_retention_seconds='1209600'
+fastqueue_min_message_max_deliveries='1'
+fastqueue_max_message_max_deliveries='1000'
+fastqueue_queue_cleanup_interval_seconds='60'
diff --git a/poetry.lock b/poetry.lock
index 08d105b..97e2cf3 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -211,7 +211,7 @@ test = ["Cython (>=0.29.24,<0.30.0)"]
 
 [[package]]
 name = "identify"
-version = "2.5.5"
+version = "2.5.6"
 description = "File identification library for Python"
 category = "dev"
 optional = false
@@ -942,8 +942,8 @@ httptools = [
     {file = "httptools-0.5.0.tar.gz", hash = "sha256:295874861c173f9101960bba332429bb77ed4dcd8cdf5cee9922eb00e4f6bc09"},
 ]
 identify = [
-    {file = "identify-2.5.5-py2.py3-none-any.whl", hash = "sha256:ef78c0d96098a3b5fe7720be4a97e73f439af7cf088ebf47b620aeaa10fadf97"},
-    {file = "identify-2.5.5.tar.gz", hash = "sha256:322a5699daecf7c6fd60e68852f36f2ecbb6a36ff6e6e973e0d2bb6fca203ee6"},
+    {file = "identify-2.5.6-py2.py3-none-any.whl", hash = "sha256:b276db7ec52d7e89f5bc4653380e33054ddc803d25875952ad90b0f012cbcdaa"},
+    {file = "identify-2.5.6.tar.gz", hash = "sha256:6c32dbd747aa4ceee1df33f25fed0b0f6e0d65721b15bd151307ff7056d50245"},
 ]
 idna = [
     {file = "idna-3.4-py3-none-any.whl", hash = "sha256:90b77e79eaa3eba6de819a0c442c0b4ceefc341a7a2ab77d7562bf49f425c5c2"},