diff --git a/test.js b/test.js
index cda0a614..39745216 100644
--- a/test.js
+++ b/test.js
@@ -652,6 +652,7 @@ test('pipenv py3.6 can package flask with default options', t => {
   const zipfiles = listZipFiles('.serverless/sls-py-req-test.zip');
   t.true(zipfiles.includes(`flask${sep}__init__.py`), 'flask is packaged');
   t.true(zipfiles.includes(`boto3${sep}__init__.py`), 'boto3 is packaged');
+  t.false(zipfiles.includes(`pytest${sep}__init__.py`), 'dev-package pytest is NOT packaged');
   t.end();
 });
 
diff --git a/tests/pipenv/Pipfile b/tests/pipenv/Pipfile
index 3798645f..0d65eb75 100644
--- a/tests/pipenv/Pipfile
+++ b/tests/pipenv/Pipfile
@@ -6,3 +6,6 @@ verify_ssl = true
 Flask = "*"
 bottle = "*"
 boto3 = "*"
+
+[dev-packages]
+pytest = "*"
diff --git a/tests/pipenv/Pipfile.lock b/tests/pipenv/Pipfile.lock
index fb840a39..4b68385d 100644
--- a/tests/pipenv/Pipfile.lock
+++ b/tests/pipenv/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "ef2bf8ae3e097071390b1bceee7f9b5944c959aea100e9f0ee6a53df3c57275b"
+            "sha256": "82666b88a005fce4645bad0e283c9eddf23446745dc6228888183a1fed2f7185"
         },
         "pipfile-spec": 6,
         "requires": {},
@@ -15,23 +15,24 @@
     "default": {
         "boto3": {
             "hashes": [
-                "sha256:49bda3ac6e69c2d0a34c37fc4ec47efd73e5f5cf86e34524b1918857aa74d797",
-                "sha256:5430b5cd532fe56ccc9eaf1ed433ac74805811b931ae1e44eb896af98a1297f0"
+                "sha256:68e32e2d1c911b0e8408278c7603f0f46c31780b46c44d23346ccef71b3f10dc",
+                "sha256:967c7a5ac484fe627706e241dfc9294a6220c863ceb53a4f34e3fe9e11a71d7a"
             ],
-            "version": "==1.5.22"
+            "version": "==1.12.2"
         },
         "botocore": {
             "hashes": [
-                "sha256:898f10e68a7a1c2be621caf046d29a8f782c0ea866d644d5be46472c00a3dee9",
-                "sha256:a80a23e080f4a93d11a1c067a69304dd407d18c358cba1e0df8c96f56c9e98b4"
+                "sha256:00bff61d899c4f12abe020527452e08cf49b3b60400c5d0d9f83c00b7d18c642",
+                "sha256:5ffdf30746dbfca59d31d2059789168255e96bd98a17a65f8edb3b6de0a96b3e"
             ],
-            "version": "==1.8.50"
+            "version": "==1.15.2"
         },
         "bottle": {
             "hashes": [
-                "sha256:39b751aee0b167be8dffb63ca81b735bbf1dd0905b3bc42761efedee8f123355"
+                "sha256:0819b74b145a7def225c0e83b16a4d5711fde751cd92bae467a69efce720f69e",
+                "sha256:43157254e88f32c6be16f8d9eb1f1d1472396a4e174ebd2bf62544854ecf37e7"
             ],
-            "version": "==0.12.13"
+            "version": "==0.12.18"
         },
         "click": {
             "hashes": [
@@ -42,17 +43,18 @@
         },
         "docutils": {
             "hashes": [
-                "sha256:0c5b78adfbf7762415433f5515cd5c9e762339e23369dbe8000d84a4bf4ab3af",
-                "sha256:c2de3a60e9e7d07be26b7f2b00ca0309c207e06c100f9cc2a94931fc75a478fc"
+                "sha256:6c4f696463b79f1fb8ba0c594b63840ebd41f059e92b31957c46b74a4599b6d0",
+                "sha256:9e4d7ecfc600058e07ba661411a2b7de2fd0fafa17d1a7f7361cd47b1175c827",
+                "sha256:a2aeea129088da402665e92e0b25b04b073c04b2dce4ab65caaa38b7ce2e1a99"
             ],
-            "version": "==0.16"
+            "version": "==0.15.2"
         },
         "flask": {
             "hashes": [
-                "sha256:0749df235e3ff61ac108f69ac178c9770caeaccad2509cb762ce1f65570a8856",
-                "sha256:49f44461237b69ecd901cc7ce66feea0319b9158743dd27a2899962ab214dac1"
+                "sha256:13f9f196f330c7c2c5d7a5cf91af894110ca0215ac051b5844701f2bfd934d52",
+                "sha256:45eb5a6fd193d6cf7e0cf5d8a5b31f83d5faae0293695626f539a823e93b13f6"
             ],
-            "version": "==0.12.2"
+            "version": "==1.1.1"
         },
         "itsdangerous": {
             "hashes": [
@@ -122,10 +124,10 @@
         },
         "s3transfer": {
             "hashes": [
-                "sha256:90dc18e028989c609146e241ea153250be451e05ecc0c2832565231dacdf59c1",
-                "sha256:c7a9ec356982d5e9ab2d4b46391a7d6a950e2b04c472419f5fdec70cc0ada72f"
+                "sha256:2482b4259524933a022d59da830f51bd746db62f047d6eb213f2f8855dcb8a13",
+                "sha256:921a37e2aefc64145e7b73d50c71bb4f26f46e4c9f414dc648c6245ff92cf7db"
             ],
-            "version": "==0.1.13"
+            "version": "==0.3.3"
         },
         "six": {
             "hashes": [
@@ -134,13 +136,100 @@
             ],
             "version": "==1.14.0"
         },
+        "urllib3": {
+            "hashes": [
+                "sha256:2f3db8b19923a873b3e5256dc9c2dedfa883e33d87c690d9c7913e1f40673cdc",
+                "sha256:87716c2d2a7121198ebcb7ce7cccf6ce5e9ba539041cfbaeecfb641dc0bf6acc"
+            ],
+            "markers": "python_version != '3.4'",
+            "version": "==1.25.8"
+        },
         "werkzeug": {
             "hashes": [
-                "sha256:97660b282aa7e29f94f3fe378e5c7162d7ab9d601a8dbb1cbb2ffc8f0e54607d",
-                "sha256:cfd1281b1748288e59762c0e174d64d8bcb2b70e7c57bc4a1203c8825af24ac3"
+                "sha256:169ba8a33788476292d04186ab33b01d6add475033dfc07215e6d219cc077096",
+                "sha256:6dc65cf9091cf750012f56f2cad759fa9e879f511b5ff8685e456b4e3bf90d16"
             ],
-            "version": "==0.15.3"
+            "version": "==1.0.0"
         }
     },
-    "develop": {}
+    "develop": {
+        "attrs": {
+            "hashes": [
+                "sha256:08a96c641c3a74e44eb59afb61a24f2cb9f4d7188748e76ba4bb5edfa3cb7d1c",
+                "sha256:f7b7ce16570fe9965acd6d30101a28f62fb4a7f9e926b3bbc9b61f8b04247e72"
+            ],
+            "version": "==19.3.0"
+        },
+        "importlib-metadata": {
+            "hashes": [
+                "sha256:06f5b3a99029c7134207dd882428a66992a9de2bef7c2b699b5641f9886c3302",
+                "sha256:b97607a1a18a5100839aec1dc26a1ea17ee0d93b20b0f008d80a5a050afb200b"
+            ],
+            "markers": "python_version < '3.8'",
+            "version": "==1.5.0"
+        },
+        "more-itertools": {
+            "hashes": [
+                "sha256:5dd8bcf33e5f9513ffa06d5ad33d78f31e1931ac9a18f33d37e77a180d393a7c",
+                "sha256:b1ddb932186d8a6ac451e1d95844b382f55e12686d51ca0c68b6f61f2ab7a507"
+            ],
+            "version": "==8.2.0"
+        },
+        "packaging": {
+            "hashes": [
+                "sha256:170748228214b70b672c581a3dd610ee51f733018650740e98c7df862a583f73",
+                "sha256:e665345f9eef0c621aa0bf2f8d78cf6d21904eef16a93f020240b704a57f1334"
+            ],
+            "version": "==20.1"
+        },
+        "pluggy": {
+            "hashes": [
+                "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0",
+                "sha256:966c145cd83c96502c3c3868f50408687b38434af77734af1e9ca461a4081d2d"
+            ],
+            "version": "==0.13.1"
+        },
+        "py": {
+            "hashes": [
+                "sha256:5e27081401262157467ad6e7f851b7aa402c5852dbcb3dae06768434de5752aa",
+                "sha256:c20fdd83a5dbc0af9efd622bee9a5564e278f6380fffcacc43ba6f43db2813b0"
+            ],
+            "version": "==1.8.1"
+        },
+        "pyparsing": {
+            "hashes": [
+                "sha256:4c830582a84fb022400b85429791bc551f1f4871c33f23e44f353119e92f969f",
+                "sha256:c342dccb5250c08d45fd6f8b4a559613ca603b57498511740e65cd11a2e7dcec"
+            ],
+            "version": "==2.4.6"
+        },
+        "pytest": {
+            "hashes": [
+                "sha256:0d5fe9189a148acc3c3eb2ac8e1ac0742cb7618c084f3d228baaec0c254b318d",
+                "sha256:ff615c761e25eb25df19edddc0b970302d2a9091fbce0e7213298d85fb61fef6"
+            ],
+            "version": "==5.3.5"
+        },
+        "six": {
+            "hashes": [
+                "sha256:236bdbdce46e6e6a3d61a337c0f8b763ca1e8717c03b369e87a7ec7ce1319c0a",
+                "sha256:8f3cd2e254d8f793e7f3d6d9df77b92252b52637291d0f0da013c76ea2724b6c"
+            ],
+            "version": "==1.14.0"
+        },
+        "wcwidth": {
+            "hashes": [
+                "sha256:8fd29383f539be45b20bd4df0dc29c20ba48654a41e661925e612311e9f3c603",
+                "sha256:f28b3e8a6483e5d49e7f8949ac1a78314e740333ae305b4ba5defd3e74fb37a8"
+            ],
+            "version": "==0.1.8"
+        },
+        "zipp": {
+            "hashes": [
+                "sha256:12248a63bbdf7548f89cb4c7cda4681e537031eda29c02ea29674bc6854460c2",
+                "sha256:7c0f8e91abc0dc07a5068f315c52cb30c66bfbc581e5b50704c8a2f6ebae794a"
+            ],
+            "version": "==3.0.0"
+        }
+    }
 }