diff --git a/sessiontxn/BUILD.bazel b/sessiontxn/BUILD.bazel
index a92e5a81dd92e..4691bfa4ff3af 100644
--- a/sessiontxn/BUILD.bazel
+++ b/sessiontxn/BUILD.bazel
@@ -20,7 +20,7 @@ go_library(
 
 go_test(
     name = "sessiontxn_test",
-    timeout = "short",
+    timeout = "moderate",
     srcs = [
         "txn_context_test.go",
         "txn_manager_test.go",
@@ -28,7 +28,7 @@ go_test(
     ],
     flaky = True,
     race = "on",
-    shard_count = 2,
+    shard_count = 50,
     deps = [
         ":sessiontxn",
         "//domain",