diff --git a/composer.json b/composer.json
index a268695..2d2318f 100644
--- a/composer.json
+++ b/composer.json
@@ -33,9 +33,9 @@
     },
     "type": "library",
     "require": {
-        "pear/pear_exception": "*"
+        "pear/pear_exception": "~1.0"
     },
     "require-dev": {
         "phpunit/phpunit": "*"
     }
-}
\ No newline at end of file
+}