diff --git a/dev/test.sh b/dev/test.sh
index 6ccb12227889..433e6ce38613 100755
--- a/dev/test.sh
+++ b/dev/test.sh
@@ -59,7 +59,7 @@ echo "- All Markdown checks passed"
 echo "- Start license checks"
 
 echo "- licensecheck: start"
-python -m licensecheck -u poetry:dev --fail-licenses gpl
+python -m licensecheck -u poetry:dev --fail-licenses gpl mit --zero
 echo "- licensecheck: done"
 
 echo "- All license checks passed"
diff --git a/pyproject.toml b/pyproject.toml
index 033505db3a26..b948c8d8b64d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -57,10 +57,10 @@ flower-server = "flwr.server:run_server"
 flower-client = "flwr.client:run_client"
 
 [tool.poetry.dependencies]
-python = "^3.8"  # PSF License Agreement
+python = "^3.8"
 # Mandatory dependencies
-numpy = "^1.21.0"  # BSD 3-Clause "New" or "Revised" License
-grpcio = "^1.48.2,!=1.52.0"  # 
+numpy = "^1.21.0"
+grpcio = "^1.48.2,!=1.52.0"
 protobuf = "^3.19.0"
 cryptography = "^41.0.2"
 pycryptodome = "^3.18.0"