diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index e21acf6..fe1c768 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -19,4 +19,4 @@ jobs:
         python -m pip install nox
     - name: Run docs
       run: |
-        nox -s docs
\ No newline at end of file
+        nox -s docs
diff --git a/setup.py b/setup.py
index 215796a..f2b5f1b 100644
--- a/setup.py
+++ b/setup.py
@@ -25,7 +25,7 @@
 version = "0.4.0"
 release_status = "Development Status :: 4 - Beta"
 dependencies = [
-    "google-api-core[grpc] >= 1.14.0, < 2.0.0dev",
+    "google-api-core[grpc] >= 1.31.5, <3.0.0dev,!=2.0.*,!=2.1.*,!=2.2.*,!=2.3.0",
     'enum34; python_version < "3.4"',
 ]