diff --git a/.kokoro/common.cfg b/.kokoro/common.cfg
index fe78759b7..d271dc456 100644
--- a/.kokoro/common.cfg
+++ b/.kokoro/common.cfg
@@ -16,7 +16,7 @@ build_file: "nodejs-firestore/.kokoro/trampoline.sh"
 # Configure the docker image for kokoro-trampoline.
 env_vars: {
     key: "TRAMPOLINE_IMAGE"
-    value: "gcr.io/cloud-devrel-kokoro-resources/node:14-user"
+    value: "gcr.io/cloud-devrel-kokoro-resources/node:18-user"
 }
 env_vars: {
     key: "TRAMPOLINE_BUILD_FILE"
diff --git a/.kokoro/continuous/node14/common.cfg b/.kokoro/continuous/node18/common.cfg
similarity index 89%
rename from .kokoro/continuous/node14/common.cfg
rename to .kokoro/continuous/node18/common.cfg
index fe78759b7..d271dc456 100644
--- a/.kokoro/continuous/node14/common.cfg
+++ b/.kokoro/continuous/node18/common.cfg
@@ -16,7 +16,7 @@ build_file: "nodejs-firestore/.kokoro/trampoline.sh"
 # Configure the docker image for kokoro-trampoline.
 env_vars: {
     key: "TRAMPOLINE_IMAGE"
-    value: "gcr.io/cloud-devrel-kokoro-resources/node:14-user"
+    value: "gcr.io/cloud-devrel-kokoro-resources/node:18-user"
 }
 env_vars: {
     key: "TRAMPOLINE_BUILD_FILE"
diff --git a/.kokoro/continuous/node14/lint.cfg b/.kokoro/continuous/node18/lint.cfg
similarity index 100%
rename from .kokoro/continuous/node14/lint.cfg
rename to .kokoro/continuous/node18/lint.cfg
diff --git a/.kokoro/continuous/node14/samples-test.cfg b/.kokoro/continuous/node18/samples-test.cfg
similarity index 100%
rename from .kokoro/continuous/node14/samples-test.cfg
rename to .kokoro/continuous/node18/samples-test.cfg
diff --git a/.kokoro/continuous/node14/system-test.cfg b/.kokoro/continuous/node18/system-test.cfg
similarity index 100%
rename from .kokoro/continuous/node14/system-test.cfg
rename to .kokoro/continuous/node18/system-test.cfg
diff --git a/.kokoro/continuous/node14/test.cfg b/.kokoro/continuous/node18/test.cfg
similarity index 100%
rename from .kokoro/continuous/node14/test.cfg
rename to .kokoro/continuous/node18/test.cfg
diff --git a/.kokoro/presubmit/node14/common.cfg b/.kokoro/presubmit/node18/common.cfg
similarity index 89%
rename from .kokoro/presubmit/node14/common.cfg
rename to .kokoro/presubmit/node18/common.cfg
index fe78759b7..d271dc456 100644
--- a/.kokoro/presubmit/node14/common.cfg
+++ b/.kokoro/presubmit/node18/common.cfg
@@ -16,7 +16,7 @@ build_file: "nodejs-firestore/.kokoro/trampoline.sh"
 # Configure the docker image for kokoro-trampoline.
 env_vars: {
     key: "TRAMPOLINE_IMAGE"
-    value: "gcr.io/cloud-devrel-kokoro-resources/node:14-user"
+    value: "gcr.io/cloud-devrel-kokoro-resources/node:18-user"
 }
 env_vars: {
     key: "TRAMPOLINE_BUILD_FILE"
diff --git a/.kokoro/presubmit/node14/samples-test.cfg b/.kokoro/presubmit/node18/samples-test.cfg
similarity index 100%
rename from .kokoro/presubmit/node14/samples-test.cfg
rename to .kokoro/presubmit/node18/samples-test.cfg
diff --git a/.kokoro/presubmit/node14/system-test.cfg b/.kokoro/presubmit/node18/system-test.cfg
similarity index 100%
rename from .kokoro/presubmit/node14/system-test.cfg
rename to .kokoro/presubmit/node18/system-test.cfg
diff --git a/.kokoro/presubmit/node14/test.cfg b/.kokoro/presubmit/node18/test.cfg
similarity index 100%
rename from .kokoro/presubmit/node14/test.cfg
rename to .kokoro/presubmit/node18/test.cfg
diff --git a/.kokoro/release/docs-devsite.cfg b/.kokoro/release/docs-devsite.cfg
index eba5ec1bf..01d035b4e 100644
--- a/.kokoro/release/docs-devsite.cfg
+++ b/.kokoro/release/docs-devsite.cfg
@@ -11,7 +11,7 @@ before_action {
 # doc publications use a Python image.
 env_vars: {
     key: "TRAMPOLINE_IMAGE"
-    value: "gcr.io/cloud-devrel-kokoro-resources/node:14-user"
+    value: "gcr.io/cloud-devrel-kokoro-resources/node:18-user"
 }
 
 # Download trampoline resources.
diff --git a/.kokoro/release/docs.cfg b/.kokoro/release/docs.cfg
index 373997814..728ae3af0 100644
--- a/.kokoro/release/docs.cfg
+++ b/.kokoro/release/docs.cfg
@@ -11,7 +11,7 @@ before_action {
 # doc publications use a Python image.
 env_vars: {
     key: "TRAMPOLINE_IMAGE"
-    value: "gcr.io/cloud-devrel-kokoro-resources/node:14-user"
+    value: "gcr.io/cloud-devrel-kokoro-resources/node:18-user"
 }
 
 # Download trampoline resources.
diff --git a/.kokoro/release/docs.sh b/.kokoro/release/docs.sh
index 4d3a08685..7102bbf09 100755
--- a/.kokoro/release/docs.sh
+++ b/.kokoro/release/docs.sh
@@ -16,7 +16,7 @@
 
 set -eo pipefail
 
-# build jsdocs (Python is installed on the Node 10 docker image).
+# build jsdocs (Python is installed on the Node 18 docker image).
 if [[ -z "$CREDENTIALS" ]]; then
   # if CREDENTIALS are explicitly set, assume we're testing locally
   # and don't set NPM_CONFIG_PREFIX.
diff --git a/.kokoro/release/publish.cfg b/.kokoro/release/publish.cfg
index a241c3268..de1572f26 100644
--- a/.kokoro/release/publish.cfg
+++ b/.kokoro/release/publish.cfg
@@ -60,7 +60,7 @@ build_file: "nodejs-firestore/.kokoro/trampoline.sh"
 # Configure the docker image for kokoro-trampoline.
 env_vars: {
     key: "TRAMPOLINE_IMAGE"
-    value: "gcr.io/cloud-devrel-kokoro-resources/node:14-user"
+    value: "gcr.io/cloud-devrel-kokoro-resources/node:18-user"
 }
 
 env_vars: {
diff --git a/.kokoro/samples-test.sh b/.kokoro/samples-test.sh
index 655ae7f3d..b0d655d65 100755
--- a/.kokoro/samples-test.sh
+++ b/.kokoro/samples-test.sh
@@ -56,7 +56,7 @@ fi
 
 # codecov combines coverage across integration and unit tests. Include
 # the logic below for any environment you wish to collect coverage for:
-COVERAGE_NODE=10
+COVERAGE_NODE=18
 if npx check-node-version@3.3.0 --silent --node $COVERAGE_NODE; then
   NYC_BIN=./node_modules/nyc/bin/nyc.js
   if [ -f "$NYC_BIN" ]; then
diff --git a/.kokoro/system-test.sh b/.kokoro/system-test.sh
index 5f8f0a05c..f5569a51b 100755
--- a/.kokoro/system-test.sh
+++ b/.kokoro/system-test.sh
@@ -49,7 +49,7 @@ npm run system-test
 
 # codecov combines coverage across integration and unit tests. Include
 # the logic below for any environment you wish to collect coverage for:
-COVERAGE_NODE=10
+COVERAGE_NODE=18
 if npx check-node-version@3.3.0 --silent --node $COVERAGE_NODE; then
   NYC_BIN=./node_modules/nyc/bin/nyc.js
   if [ -f "$NYC_BIN" ]; then
diff --git a/.kokoro/test.bat b/.kokoro/test.bat
index ae59e59be..caf825656 100644
--- a/.kokoro/test.bat
+++ b/.kokoro/test.bat
@@ -21,7 +21,7 @@ cd ..
 @rem we upgrade Node.js in the image:
 SET PATH=%PATH%;/cygdrive/c/Program Files/nodejs/npm
 
-call nvm use v12.14.1
+call nvm use 18
 call which node
 
 call npm install || goto :error
diff --git a/.kokoro/test.sh b/.kokoro/test.sh
index 0248d0781..e1334dcaa 100755
--- a/.kokoro/test.sh
+++ b/.kokoro/test.sh
@@ -36,7 +36,7 @@ npm test
 
 # codecov combines coverage across integration and unit tests. Include
 # the logic below for any environment you wish to collect coverage for:
-COVERAGE_NODE=10
+COVERAGE_NODE=18
 if npx check-node-version@3.3.0 --silent --node $COVERAGE_NODE; then
   NYC_BIN=./node_modules/nyc/bin/nyc.js
   if [ -f "$NYC_BIN" ]; then