diff --git a/MODULE.bazel b/MODULE.bazel
index d3f3c8b..0b50ae3 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -11,6 +11,9 @@ bazel_dep(
 
 python = use_extension("@rules_python//python/extensions:python.bzl", "python")
 
+python.toolchain(python_version = "3.9")
+python.toolchain(python_version = "3.10")
+python.toolchain(python_version = "3.11")
 python.toolchain(
     is_default = True,
     python_version = "3.12",
@@ -20,11 +23,19 @@ use_repo(python, "python_versions")
 
 pip = use_extension("@rules_python//python/extensions:pip.bzl", "pip")
 
-pip.parse(
-    hub_name = "trlc_dependencies",
-    python_version = "3.12",
-    requirements_lock = "//:requirements.txt",
-)
+[
+    pip.parse(
+        hub_name = "trlc_dependencies",
+        python_version = python_version,
+        requirements_lock = "//:requirements.txt",
+    )
+    for python_version in [
+        "3.9",
+        "3.10",
+        "3.11",
+        "3.12",
+    ]
+]
 
 use_repo(pip, "trlc_dependencies")