diff --git a/matrix_gpt/generate_clients/copilot.py b/matrix_gpt/generate_clients/copilot.py
index 3901771..a8da0f9 100644
--- a/matrix_gpt/generate_clients/copilot.py
+++ b/matrix_gpt/generate_clients/copilot.py
@@ -8,6 +8,10 @@ from sydney import SydneyClient
 from matrix_gpt.generate_clients.api_client import ApiClient
 from matrix_gpt.generate_clients.command_info import CommandInfo
 
+"""
+This was written with sydney.py==0.20.4 but requirements.txt has not locked in a version because Bing's API may change. 
+"""
+
 _REGEX_ATTR_RE_STR = r'^\[(\d*)]:\s(https?://(?:www\.)?[-a-zA-Z0-9@:%._+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b[-a-zA-Z0-9()@:%_+.~#?&/=]*)\s*(\"\")*'
 _REGEX_ATTR_RE = re.compile(_REGEX_ATTR_RE_STR)
 _REGEX_ATTR_LINK_RE_STR = [r'\[\^\d*\^]\[', r']']
diff --git a/requirements.txt b/requirements.txt
index 4bb22f6..c1a0d5f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,4 +3,5 @@ markdown==3.6
 openai==1.16.2
 anthropic==0.23.1
 pillow==10.3.0
+sydney.py
 git+https://git.evulid.cc/cyberes/bison.git