diff --git a/.kokoro/presubmit/prerelease-deps-3.8.cfg b/.kokoro/presubmit/prerelease-deps-3.10.cfg
similarity index 78%
rename from .kokoro/presubmit/prerelease-deps-3.8.cfg
rename to .kokoro/presubmit/prerelease-deps-3.10.cfg
index fabe3e3..0c6c446 100644
--- a/.kokoro/presubmit/prerelease-deps-3.8.cfg
+++ b/.kokoro/presubmit/prerelease-deps-3.10.cfg
@@ -3,5 +3,5 @@
 # Only run this nox session.
 env_vars: {
     key: "NOX_SESSION"
-    value: "prerelease_deps-3.8"
+value: "prerelease_deps-3.10"
 }
diff --git a/.kokoro/presubmit/prerelease-deps-3.9.cfg b/.kokoro/presubmit/prerelease-deps-3.9.cfg
new file mode 100644
index 0000000..48d07dd
--- /dev/null
+++ b/.kokoro/presubmit/prerelease-deps-3.9.cfg
@@ -0,0 +1,7 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Only run this nox session.
+env_vars: {
+    key: "NOX_SESSION"
+value: "prerelease_deps-3.9"
+}
diff --git a/.kokoro/presubmit/system-3.10.cfg b/.kokoro/presubmit/system-3.10.cfg
new file mode 100644
index 0000000..f1c7c56
--- /dev/null
+++ b/.kokoro/presubmit/system-3.10.cfg
@@ -0,0 +1,7 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Only run this nox session.
+env_vars: {
+    key: "NOX_SESSION"
+    value: "system-3.10"
+}
\ No newline at end of file
diff --git a/.kokoro/presubmit/system-3.8.cfg b/.kokoro/presubmit/system-3.9.cfg
similarity index 83%
rename from .kokoro/presubmit/system-3.8.cfg
rename to .kokoro/presubmit/system-3.9.cfg
index f4bcee3..b8ae66b 100644
--- a/.kokoro/presubmit/system-3.8.cfg
+++ b/.kokoro/presubmit/system-3.9.cfg
@@ -3,5 +3,5 @@
 # Only run this nox session.
 env_vars: {
     key: "NOX_SESSION"
-    value: "system-3.8"
+    value: "system-3.9"
 }
\ No newline at end of file