diff --git a/composer.json b/composer.json
index 8934b01b7..cb8e79446 100644
--- a/composer.json
+++ b/composer.json
@@ -33,7 +33,8 @@
     "symfony/http-foundation": "~3.0",
     "mdanter/ecc": "~0.4",
     "bitwasp/buffertools": "~0.3",
-    "bitwasp/secp256k1-php": "~0.0.7"
+    "bitwasp/secp256k1-php": "~0.0.7",
+    "composer/semver": "~1.4.0"
   },
   "require-dev": {
     "ext-json": "*",
diff --git a/src/Crypto/EcAdapter/EcAdapterFactory.php b/src/Crypto/EcAdapter/EcAdapterFactory.php
index 21b5ec554..a0fced467 100644
--- a/src/Crypto/EcAdapter/EcAdapterFactory.php
+++ b/src/Crypto/EcAdapter/EcAdapterFactory.php
@@ -4,6 +4,7 @@
 
 use BitWasp\Bitcoin\Crypto\EcAdapter\Adapter\EcAdapterInterface;
 use BitWasp\Bitcoin\Math\Math;
+use Composer\Semver\Semver;
 use Mdanter\Ecc\Primitives\GeneratorPoint;
 use BitWasp\Bitcoin\Crypto\EcAdapter\Impl\PhpEcc\Adapter\EcAdapter as PhpEcc;
 use BitWasp\Bitcoin\Crypto\EcAdapter\Impl\Secp256k1\Adapter\EcAdapter as Secp256k1;
@@ -48,7 +49,7 @@ public static function getAdapter(Math $math, GeneratorPoint $generator)
             return self::$adapter;
         }
 
-        if (extension_loaded('secp256k1')) {
+        if (extension_loaded('secp256k1') && Semver::satisfies(phpversion('secp256k1'), "~0.1.0")) {
             self::$adapter = self::getSecp256k1($math, $generator);
         } else {
             self::$adapter = self::getPhpEcc($math, $generator);