diff --git a/sdks/python/container/py310/base_image_requirements.txt b/sdks/python/container/py310/base_image_requirements.txt
index c89f35e243f1..ec7a6d123d63 100644
--- a/sdks/python/container/py310/base_image_requirements.txt
+++ b/sdks/python/container/py310/base_image_requirements.txt
@@ -78,7 +78,7 @@ googleapis-common-protos==1.65.0
 greenlet==3.0.3
 grpc-google-iam-v1==0.13.1
 grpc-interceptor==0.15.4
-grpcio==1.66.1
+grpcio==1.65.5
 grpcio-status==1.62.3
 guppy3==3.1.4.post1
 hdfs==2.7.3
diff --git a/sdks/python/container/py311/base_image_requirements.txt b/sdks/python/container/py311/base_image_requirements.txt
index fda2e2146184..39d014a699cd 100644
--- a/sdks/python/container/py311/base_image_requirements.txt
+++ b/sdks/python/container/py311/base_image_requirements.txt
@@ -76,7 +76,7 @@ googleapis-common-protos==1.65.0
 greenlet==3.0.3
 grpc-google-iam-v1==0.13.1
 grpc-interceptor==0.15.4
-grpcio==1.66.1
+grpcio==1.65.5
 grpcio-status==1.62.3
 guppy3==3.1.4.post1
 hdfs==2.7.3
diff --git a/sdks/python/container/py312/base_image_requirements.txt b/sdks/python/container/py312/base_image_requirements.txt
index c027191bc6aa..4c445ba0d2ab 100644
--- a/sdks/python/container/py312/base_image_requirements.txt
+++ b/sdks/python/container/py312/base_image_requirements.txt
@@ -75,7 +75,7 @@ googleapis-common-protos==1.65.0
 greenlet==3.0.3
 grpc-google-iam-v1==0.13.1
 grpc-interceptor==0.15.4
-grpcio==1.66.1
+grpcio==1.65.5
 grpcio-status==1.62.3
 guppy3==3.1.4.post1
 hdfs==2.7.3
diff --git a/sdks/python/container/py38/base_image_requirements.txt b/sdks/python/container/py38/base_image_requirements.txt
index 1796e4e83bfa..32d77b7d53fb 100644
--- a/sdks/python/container/py38/base_image_requirements.txt
+++ b/sdks/python/container/py38/base_image_requirements.txt
@@ -79,7 +79,7 @@ googleapis-common-protos==1.65.0
 greenlet==3.0.3
 grpc-google-iam-v1==0.13.1
 grpc-interceptor==0.15.4
-grpcio==1.66.1
+grpcio==1.65.5
 grpcio-status==1.62.3
 guppy3==3.1.4.post1
 hdfs==2.7.3
diff --git a/sdks/python/container/py39/base_image_requirements.txt b/sdks/python/container/py39/base_image_requirements.txt
index aa2b4f3bb388..08fec552c2f3 100644
--- a/sdks/python/container/py39/base_image_requirements.txt
+++ b/sdks/python/container/py39/base_image_requirements.txt
@@ -78,7 +78,7 @@ googleapis-common-protos==1.65.0
 greenlet==3.0.3
 grpc-google-iam-v1==0.13.1
 grpc-interceptor==0.15.4
-grpcio==1.66.1
+grpcio==1.65.5
 grpcio-status==1.62.3
 guppy3==3.1.4.post1
 hdfs==2.7.3
diff --git a/sdks/python/setup.py b/sdks/python/setup.py
index f9eb9cd81731..216694168902 100644
--- a/sdks/python/setup.py
+++ b/sdks/python/setup.py
@@ -353,7 +353,8 @@ def get_portability_package_data():
           'cloudpickle~=2.2.1',
           'fastavro>=0.23.6,<2',
           'fasteners>=0.3,<1.0',
-          'grpcio>=1.33.1,<2,!=1.48.0,!=1.59.*,!=1.60.*,!=1.61.*,!=1.62.0,!=1.62.1',  # pylint: disable=line-too-long
+          # TODO(https://github.com/grpc/grpc/issues/37710): Unpin grpc
+          'grpcio>=1.33.1,<2,!=1.48.0,!=1.59.*,!=1.60.*,!=1.61.*,!=1.62.0,!=1.62.1,<1.66.0',  # pylint: disable=line-too-long
           'hdfs>=2.1.0,<3.0.0',
           'httplib2>=0.8,<0.23.0',
           'jsonschema>=4.0.0,<5.0.0',