diff --git a/.github/CHANGELOG.md b/.github/CHANGELOG.md
index 0f20977..f3e37c9 100644
--- a/.github/CHANGELOG.md
+++ b/.github/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Changelog
 
+## [4.4.7](https://github.com/intelowlproject/pyintelowl/releases/tag/4.4.7)
+- Fixed Running Playbook without TLP set
+
 ## [4.4.6](https://github.com/intelowlproject/pyintelowl/releases/tag/4.4.6)
 - Readded default TLP for analysis as TLP:CLEAR for "classic" analyses only (the ones that do not leverage a Playbook)
 
diff --git a/docs/conf.py b/docs/conf.py
index df939a9..d17c82e 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -13,7 +13,7 @@
 import os
 import sys
 
-VERSION = "4.4.6"
+VERSION = "4.4.7"
 GITHUB_URL = "https://github.com/intelowlproject/pyintelowl"
 
 sys.path.append(os.path.abspath("../"))
diff --git a/pyintelowl/pyintelowl.py b/pyintelowl/pyintelowl.py
index 1302e24..dde37d6 100644
--- a/pyintelowl/pyintelowl.py
+++ b/pyintelowl/pyintelowl.py
@@ -253,9 +253,12 @@ def send_file_analysis_playbook_request(
                 runtime_configuration = {}
             data = {
                 "playbooks_requested": playbooks_requested,
-                "tlp": tlp,
                 "tags_labels": tags_labels,
             }
+            # send this value only if populated,
+            # otherwise the backend would give you 400
+            if tlp:
+                data["tlp"] = tlp
 
             if runtime_configuration:
                 data["runtime_configuration"] = json.dumps(runtime_configuration)
@@ -413,10 +416,13 @@ def send_observable_analysis_playbook_request(
             data = {
                 "observables": [[observable_classification, observable_name]],
                 "playbooks_requested": playbooks_requested,
-                "tlp": tlp,
                 "tags_labels": tags_labels,
                 "runtime_configuration": runtime_configuration,
             }
+            # send this value only if populated,
+            # otherwise the backend would give you 400
+            if tlp:
+                data["tlp"] = tlp
             answer = self.__send_analysis_request(
                 data=data, files=None, playbook_mode=True
             )
diff --git a/pyintelowl/version.py b/pyintelowl/version.py
index 3a55d6b..d2eb259 100644
--- a/pyintelowl/version.py
+++ b/pyintelowl/version.py
@@ -1 +1 @@
-__version__ = "4.4.6"
+__version__ = "4.4.7"