diff --git a/monkey/infection_monkey/Pipfile b/monkey/infection_monkey/Pipfile
index 9423f7d7b..73841732d 100644
--- a/monkey/infection_monkey/Pipfile
+++ b/monkey/infection_monkey/Pipfile
@@ -5,7 +5,7 @@ name = "pypi"
 
 [packages]
 cryptography = "==2.5" # We can't build 32bit ubuntu12 binary with newer versions of cryptography
-pyinstaller = "==4.8"
+pyinstaller = "==4.9"
 impacket = ">=0.9"
 ipaddress = ">=1.0.23"
 netifaces = ">=0.10.9"
@@ -24,6 +24,7 @@ pysmb = "*"
 "WinSys-3.x" = "*"
 ldaptor = "*"
 pywin32-ctypes = {version = "*", sys_platform = "== 'win32'"} # Pyinstaller requirement on windows
+pywin32 = {version = "*", sys_platform = "== 'win32'"} # Lock file is not created with sys_platform win32 requirement if not explicitly specified
 pefile = {version = "*", sys_platform = "== 'win32'"} # Pyinstaller requirement on windows
 
 [dev-packages]
diff --git a/monkey/infection_monkey/Pipfile.lock b/monkey/infection_monkey/Pipfile.lock
index 7b4c43bfb..a1621a541 100644
--- a/monkey/infection_monkey/Pipfile.lock
+++ b/monkey/infection_monkey/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "00bf5f0c407e29e2ecc8d4fa4387ee2f51367ed183f0243266fd517f5250906c"
+            "sha256": "bb90b6c44807e84c604bdcf613e9fe3ef0f8501326f12b27988b3a255e545ab5"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -208,7 +208,7 @@
                 "sha256:081649da27ced5e75709a1ee542136eaba9842a0fe4c03da4fb0a3d3ed1f3c44",
                 "sha256:e79351e032d0b606b98d38a4b0e6e2275b31a5b85c873e587cc11b73aca026d6"
             ],
-            "markers": "python_version >= '3.6' and python_version < '4.0'",
+            "markers": "python_version >= '3.6' and python_version < '4'",
             "version": "==2.2.0"
         },
         "flask": {
@@ -610,20 +610,20 @@
         },
         "pyinstaller": {
             "hashes": [
-                "sha256:15d9266d78dc757c103962826e62bce1513825078160be580534ead2ef53087c",
-                "sha256:44783d58ac4cb0a74a4f2180da4dacbe6a7a013a62b3aa10be6082252e296954",
-                "sha256:4c848720a65a5bd41249bc804d1bd3dd089bb56aef7f1c5e11f774f11e649443",
-                "sha256:53ed05214dd67624756fe4e82e861857921a79d0392debf8c9f5bb0ba5a479b6",
-                "sha256:5c2fd5f18c0397f3d9160446035556afc7f6446fd88048887fdf46eadf85c5ec",
-                "sha256:6f5cdc39fbdec7b2e0c46cc0f5bd0071bb85e592e324bf4e15375c5ff19e55fc",
-                "sha256:7ae868bbcc502832a2c802c84a1dbb9f48b44445c50144c29bfcd7b760140e13",
-                "sha256:9fbb05f5f67862005234da8c7eac69ef87e086f90e345749260051b031774c52",
-                "sha256:b0b3a31aa60292469f9595f298e2c147cba29c30edcd92a38fdce27727809625",
-                "sha256:b720853a00bd9547b7d6403d85f23b7f7e451e41bc907673d9fc7f8d9d274594",
-                "sha256:f00e1296abac71f3b5bb9fdc2e0d4c079201d62faeeeb894ccadd0616179fee3"
+                "sha256:24035eb9fffa2e3e288b4c1c9710043819efc7203cae5c8c573bec16f4a8e98f",
+                "sha256:59372b950d176fdc5ecea29719a8ab3f194b73a15b7f9875ac2a1de9a3daf5ed",
+                "sha256:62c97cbbdbee30974d607eb1de9afb081eb3adba787c203b00438e21027b829b",
+                "sha256:75a180a658871bc41f9cf94b6f90ffa54e98f5d6a7cdb02d7530f0360afe24f9",
+                "sha256:7f46ab11ec986e4c525b93251063144e12d432a132dbc0070e3030e34c76537a",
+                "sha256:a0b988cfc197d40e3d773b3aa1c7d3e918fc0933b4c15ec3fc5d156f222d82cb",
+                "sha256:b5f1a94150315ea75bf3501be6c8476d65a7209580bb662da06dbdbc4454f375",
+                "sha256:bec57b3b2b6178907255557ec0fc4b5ce5a0474013414cdadea853205c74ed26",
+                "sha256:e2f165cea4470ce8a8349112cd78f48a61413805adc17792a91997a11cfe1d80",
+                "sha256:ebeb87cdbadb2b4e8f991ffd9945ebd4fb3a7303180e63682c3e1ce01b3fdd22",
+                "sha256:ec3ca331d565ffca1b6470c5aaf798885a03708c3d0b15c1b19009126f84c1d4"
             ],
             "index": "pypi",
-            "version": "==4.8"
+            "version": "==4.9"
         },
         "pyinstaller-hooks-contrib": {
             "hashes": [
@@ -756,6 +756,8 @@
                 "sha256:d9b5d87ca944eb3aa4cd45516203ead4b37ab06b8b777c54aedc35975dec0dee",
                 "sha256:fcf44032f5b14fcda86028cdf49b6ebdaea091230eb0a757282aa656e4732439"
             ],
+            "index": "pypi",
+            "markers": "sys_platform == 'win32'",
             "version": "==303"
         },
         "pywin32-ctypes": {