diff --git a/check50/__main__.py b/check50/__main__.py
index 5bf1c9d9..16148b63 100644
--- a/check50/__main__.py
+++ b/check50/__main__.py
@@ -168,7 +168,7 @@ def await_results(commit_hash, slug, pings=45, sleep=2):
 
     for _i in range(pings):
         # Query for check results.
-        res = requests.get(f"https://submit.cs50.io/api/results/check50?check50", params={"commit_hash": commit_hash, "slug": slug})
+        res = requests.get(f"https://submit.cs50.io/api/results/check50", params={"commit_hash": commit_hash, "slug": slug})
         results = res.json()
 
         if res.status_code not in [404, 200]:
@@ -302,7 +302,7 @@ def main():
     excepthook.output_file = args.output_file
 
     if not args.local:
-        commit_hash = lib50.push("check50", SLUG, internal.CONFIG_LOADER, commit_suffix="[check50=true]")[1]
+        commit_hash = lib50.push("check50", SLUG, internal.CONFIG_LOADER, data={"check50": True})[1]
         with lib50.ProgressBar("Waiting for results") if "ansi" in args.output else nullcontext():
             tag_hash, results = await_results(commit_hash, SLUG)
     else:
diff --git a/setup.py b/setup.py
index ef8b6a8e..fa0d9680 100644
--- a/setup.py
+++ b/setup.py
@@ -17,7 +17,7 @@
     message_extractors = {
         'check50': [('**.py', 'python', None),],
     },
-    install_requires=["attrs>=18", "bs4>=0", "pexpect>=4.6", "lib50>=1.1.8", "pyyaml>=3.10", "requests>=2.19", "termcolor>=1.1", "jinja2>=2.10"],
+    install_requires=["attrs>=18", "bs4>=0", "pexpect>=4.6", "lib50>=2,<3", "pyyaml>=3.10", "requests>=2.19", "termcolor>=1.1", "jinja2>=2.10"],
     extras_require = {
         "develop": ["sphinx", "sphinx_rtd_theme"]
     },
@@ -29,6 +29,6 @@
         "console_scripts": ["check50=check50.__main__:main"]
     },
     url="https://github.com/cs50/check50",
-    version="3.0.6",
+    version="3.0.7",
     include_package_data=True
 )