diff --git a/integration-tests/init.spec.js b/integration-tests/init.spec.js
index dd091b63be3..d9df9164c8c 100644
--- a/integration-tests/init.spec.js
+++ b/integration-tests/init.spec.js
@@ -1,5 +1,6 @@
 'use strict'
 
+const assert = require('assert')
 const semver = require('semver')
 const {
   runAndCheckWithTelemetry: testFile,
@@ -99,70 +100,98 @@ function testRuntimeVersionChecks (arg, filename) {
       }
     }
 
-    if (!currentVersionIsSupported) {
-      context('when node version is less than engines field', () => {
-        useEnv({ NODE_OPTIONS })
+    let pkgPath
+    let pkgStr
 
-        it('should not initialize the tracer', () => doTest('false\n', []))
+    before(() => {
+      pkgPath = `${sandboxCwd()}/node_modules/dd-trace/package.json`
+      pkgStr = fs.readFileSync(pkgPath, 'utf8')
+    })
 
-        context('with DD_INJECTION_ENABLED', () => {
-          useEnv({ DD_INJECTION_ENABLED })
+    after(() => {
+      fs.writeFileSync(pkgPath, pkgStr)
+    })
 
-          context('without debug', () => {
-            it('should not initialize the tracer', () => doTest('false\n', telemetryAbort))
+    it('should be able to use the engines field', () => {
+      const engines = require(`${sandboxCwd()}/node_modules/dd-trace/package.json`).engines.node
 
-            it('should initialize the tracer, if DD_INJECT_FORCE', () => doTestForced('true\n', telemetryForced))
-          })
+      assert.match(engines, /^>=[\d]+(\.[\d]+){0,2} <[\d]+(\.[\d]+){0,2}?/)
+    })
 
-          context('with debug', () => {
-            useEnv({ DD_TRACE_DEBUG })
+    context('when node version is out of range of the engines field', () => {
+      useEnv({ NODE_OPTIONS })
+
+      before(() => {
+        const pkg = JSON.parse(pkgStr)
+        pkg.engines.node = '>=0 <0'
+        fs.writeFileSync(pkgPath, JSON.stringify(pkg))
+      })
 
-            it('should not initialize the tracer', () =>
-              doTest(`Aborting application instrumentation due to incompatible_runtime.
+      it('should not initialize the tracer', () => doTest('false\n', []))
+
+      context('with DD_INJECTION_ENABLED', () => {
+        useEnv({ DD_INJECTION_ENABLED })
+
+        context('without debug', () => {
+          it('should not initialize the tracer', () => doTest('false\n', telemetryAbort))
+
+          it('should initialize the tracer, if DD_INJECT_FORCE', () => doTestForced('true\n', telemetryForced))
+        })
+
+        context('with debug', () => {
+          useEnv({ DD_TRACE_DEBUG })
+
+          it('should not initialize the tracer', () =>
+            doTest(`Aborting application instrumentation due to incompatible_runtime.
 Found incompatible runtime Node.js ${process.versions.node}, Supported runtimes: Node.js \
->=18.
+>=0 <0.
 false
 `, telemetryAbort))
 
-            it('should initialize the tracer, if DD_INJECT_FORCE', () =>
-              doTestForced(`Aborting application instrumentation due to incompatible_runtime.
+          it('should initialize the tracer, if DD_INJECT_FORCE', () =>
+            doTestForced(`Aborting application instrumentation due to incompatible_runtime.
 Found incompatible runtime Node.js ${process.versions.node}, Supported runtimes: Node.js \
->=18.
+>=0 <0.
 DD_INJECT_FORCE enabled, allowing unsupported runtimes and continuing.
 Application instrumentation bootstrapping complete
 true
 `, telemetryForced))
-          })
         })
       })
-    } else {
-      context('when node version is more than engines field', () => {
-        useEnv({ NODE_OPTIONS })
+    })
+
+    context('when node version is in range of the engines field', () => {
+      useEnv({ NODE_OPTIONS })
+
+      before(() => {
+        const pkg = JSON.parse(pkgStr)
+        pkg.engines.node = '>=0 <1000'
+        fs.writeFileSync(pkgPath, JSON.stringify(pkg))
+      })
 
-        it('should initialize the tracer, if no DD_INJECTION_ENABLED', () => doTest('true\n', [], 'manual'))
+      it('should initialize the tracer, if no DD_INJECTION_ENABLED', () => doTest('true\n', [], 'manual'))
 
-        context('with DD_INJECTION_ENABLED', () => {
-          useEnv({ DD_INJECTION_ENABLED })
+      context('with DD_INJECTION_ENABLED', () => {
+        useEnv({ DD_INJECTION_ENABLED })
 
-          context('without debug', () => {
-            it('should initialize the tracer', () => doTest('true\n', telemetryGood, 'ssi'))
+        context('without debug', () => {
+          it('should initialize the tracer', () => doTest('true\n', telemetryGood, 'ssi'))
 
-            it('should initialize the tracer, if DD_INJECT_FORCE', () =>
-              doTestForced('true\n', telemetryGood, 'ssi'))
-          })
+          it('should initialize the tracer, if DD_INJECT_FORCE', () =>
+            doTestForced('true\n', telemetryGood, 'ssi'))
+        })
 
-          context('with debug', () => {
-            useEnv({ DD_TRACE_DEBUG })
+        context('with debug', () => {
+          useEnv({ DD_TRACE_DEBUG })
 
-            it('should initialize the tracer', () =>
-              doTest('Application instrumentation bootstrapping complete\ntrue\n', telemetryGood, 'ssi'))
+          it('should initialize the tracer', () =>
+            doTest('Application instrumentation bootstrapping complete\ntrue\n', telemetryGood, 'ssi'))
 
-            it('should initialize the tracer, if DD_INJECT_FORCE', () =>
-              doTestForced('Application instrumentation bootstrapping complete\ntrue\n', telemetryGood, 'ssi'))
-          })
+          it('should initialize the tracer, if DD_INJECT_FORCE', () =>
+            doTestForced('Application instrumentation bootstrapping complete\ntrue\n', telemetryGood, 'ssi'))
         })
       })
-    }
+    })
   })
 }
 
diff --git a/package.json b/package.json
index c8c406857fc..c389ee084e7 100644
--- a/package.json
+++ b/package.json
@@ -93,7 +93,7 @@
   },
   "homepage": "https://github.com/DataDog/dd-trace-js#readme",
   "engines": {
-    "node": ">=18"
+    "node": ">=18 <26"
   },
   "files": [
     "ci/**/*",
diff --git a/packages/dd-trace/src/guardrails/index.js b/packages/dd-trace/src/guardrails/index.js
index 9379d042c0e..c8f82fd1038 100644
--- a/packages/dd-trace/src/guardrails/index.js
+++ b/packages/dd-trace/src/guardrails/index.js
@@ -14,7 +14,9 @@ function guard (fn) {
   var clobberBailout = false
   var forced = isTrue(process.env.DD_INJECT_FORCE)
   var engines = require('../../../../package.json').engines
-  var minMajor = parseInt(engines.node.replace(/[^0-9]/g, ''))
+  var versions = engines.node.match(/[\d.]+/g)
+  var minMajor = versions[0].split('.')[0]
+  var maxMajor = versions[1].split('.')[0]
   var version = process.versions.node
 
   if (process.env.DD_INJECTION_ENABLED) {
@@ -40,7 +42,7 @@ function guard (fn) {
 
   // If the runtime doesn't match the engines field in package.json, then we
   // should not initialize the tracer.
-  if (!clobberBailout && NODE_MAJOR < minMajor) {
+  if (!clobberBailout && (NODE_MAJOR < minMajor || NODE_MAJOR > maxMajor)) {
     initBailout = true
     telemetry([
       { name: 'abort', tags: ['reason:incompatible_runtime'] },