diff --git a/Pipfile b/Pipfile
index 181134f0d4dbcdeb22cceaba7e85928e7c380071..273b60ea9e05efb60e9b96f7deeee64d91a541c4 100644
--- a/Pipfile
+++ b/Pipfile
@@ -9,6 +9,8 @@ name = "kypo"
 verify_ssl = true
 
 [dev-packages]
+#pipenv
+pipenv = "==2022.3.28"
 # tox
 tox = "~=3.7.0"
 tox-pipenv = "~=1.9.0"
diff --git a/Pipfile.lock b/Pipfile.lock
index 14f8a845afeea385fc31c1c21edab29a85683faa..42f50b936e37e7cb41dd9fe15efbd1b4156601b1 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "837d1d75fc646c181dc4d6543c7a5fa70214b89d2185fdd1d8bfc4bdf79dbd31"
+            "sha256": "4800af6ac356f2041dcf94a01b4b7783970588a74269c2f6cbf337a6c9d07415"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -1068,11 +1068,11 @@
         },
         "pipenv": {
             "hashes": [
-                "sha256:3ac62c1121477b0758b0eef9e47643d5a2ba1b57e47a0789620ce5ef9bbc007e",
-                "sha256:53562bf69d9e5238f99a1e2101c356746b1c0aefa5dceb9b8a84a5a3e201de0d"
+                "sha256:405dd08cdae7dd25e5a33bff3074ec6ea39d58e9cfbc0424f83d5db9712bd4bf",
+                "sha256:4e7aae62dad7679ce81b54cc3451be19fb2c469e269335b36b14132fe5ceecb3"
             ],
-            "markers": "python_version >= '3.6'",
-            "version": "==2022.4.8"
+            "index": "pypi",
+            "version": "==2022.3.28"
         },
         "platformdirs": {
             "hashes": [