diff --git a/composer.json b/composer.json
index 21c98ae..61914ef 100644
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,7 @@
         "php": ">=5.3.0",
         "ext-soap": "*",
         "ext-curl": "*",
-        "ass/xmlsecurity": "dev-master",
+        "ass/xmlsecurity": "~1.0",
         "symfony/framework-bundle": "~2.0",
         "zendframework/zend-mail": "2.1.*",
         "zendframework/zend-mime": "2.1.*",
diff --git a/src/BeSimple/SoapBundle/composer.json b/src/BeSimple/SoapBundle/composer.json
index 1537d48..dd86aa1 100644
--- a/src/BeSimple/SoapBundle/composer.json
+++ b/src/BeSimple/SoapBundle/composer.json
@@ -24,7 +24,7 @@
         "ext-soap": "*",
         "besimple/soap-common": "0.2.*",
         "besimple/soap-wsdl": "0.2.*",
-        "ass/xmlsecurity": "dev-master",
+        "ass/xmlsecurity": "~1.0",
         "zendframework/zend-mail": "2.1.*",
         "zendframework/zend-mime": "2.1.*",
         "zendframework/zend-soap": "2.1.*",
diff --git a/src/BeSimple/SoapClient/composer.json b/src/BeSimple/SoapClient/composer.json
index 51ada4f..c66b73f 100644
--- a/src/BeSimple/SoapClient/composer.json
+++ b/src/BeSimple/SoapClient/composer.json
@@ -24,7 +24,7 @@
         "ext-soap": "*",
         "ext-curl": "*",
         "besimple/soap-common": "0.2.*",
-        "ass/xmlsecurity": "dev-master"
+        "ass/xmlsecurity": "~1.0"
     },
     "require-dev": {
         "mikey179/vfsStream": "dev-master",
diff --git a/src/BeSimple/SoapCommon/composer.json b/src/BeSimple/SoapCommon/composer.json
index e9eba96..e219f9b 100644
--- a/src/BeSimple/SoapCommon/composer.json
+++ b/src/BeSimple/SoapCommon/composer.json
@@ -22,7 +22,7 @@
     "require": {
         "php": ">=5.3.0",
         "ext-soap": "*",
-        "ass/xmlsecurity": "dev-master"
+        "ass/xmlsecurity": "~1.0"
     },
     "require-dev": {
         "ext-mcrypt": "*",
diff --git a/src/BeSimple/SoapServer/composer.json b/src/BeSimple/SoapServer/composer.json
index fad18c0..942c3bd 100644
--- a/src/BeSimple/SoapServer/composer.json
+++ b/src/BeSimple/SoapServer/composer.json
@@ -22,7 +22,8 @@
     "require": {
         "php": ">=5.3.0",
         "ext-soap": "*",
-        "besimple/soap-common": "0.2.*"
+        "besimple/soap-common": "0.2.*",
+        "ass/xmlsecurity": "~1.0"
     },
     "autoload": {
         "psr-0": { "BeSimple\\SoapServer": "" }