diff --git a/sdks/python/tox.ini b/sdks/python/tox.ini
index 52fd82d41153..afb9b6520fb6 100644
--- a/sdks/python/tox.ini
+++ b/sdks/python/tox.ini
@@ -517,22 +517,17 @@ commands =
 
 [testenv:py{310,311}-transformers-{428,447,448,latest}]
 deps =
-  # sentence-transformers 2.2.2 is the latest version that supports transformers 4.28.x
-  428: sentence-transformers==2.2.2
-  428: transformers>=4.28.0,<4.29.0
-  428: torch>=1.9.0,<1.14.0
-  447: transformers>=4.47.0,<4.48.0
-  447: torch>=1.9.0,<1.14.0
-  455: transformers>=4.55.0,<4.56.0
-  455: torch>=2.0.0,<2.1.0
-  latest: transformers>=4.55.0
-  latest: torch>=2.0.0
-  latest: accelerate>=1.6.0
-  tensorflow==2.12.0
-  protobuf==4.25.5
-  pip==25.0.1
+  # Environment dependencies are defined in the `setenv` section and installed in the `commands` section.
 extras = test,gcp,ml_test
-commands =
+setenv =
+    COMMON_DEPS = tensorflow==2.12.0 protobuf==4.25.5 pip==25.0.1
+    # sentence-transformers 2.2.2 is the latest version that supports transformers 4.28.x
+    428: DEPS = sentence-transformers==2.2.2 'transformers>=4.28.0,<4.29.0' 'torch>=1.9.0,<1.14.0'
+    447: DEPS = 'transformers>=4.47.0,<4.48.0' 'torch>=1.9.0,<1.14.0'
+    455: DEPS = 'transformers>=4.55.0,<4.56.0' 'torch>=2.0.0,<2.1.0'
+    latest: DEPS = 'transformers>=4.55.0' 'torch>=2.0.0' 'accelerate>=1.6.0'
+commands =
+  /bin/sh -c "pip install .[{extras}] {env:DEPS} {env:COMMON_DEPS}"
   # Log transformers and its dependencies version for debugging
   /bin/sh -c "pip freeze | grep -E transformers"
   /bin/sh -c "pip freeze | grep -E torch"