diff --git a/composer.json b/composer.json
index 08fbf37..6acf963 100644
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,8 @@
         "silverstripe/framework": "^3.5",
         "silverstripe/cms": "^3.5",
         "symbiote/silverstripe-gridfieldextensions": "^2.0",
-        "silverstripe/taxonomy": "^1.2"
+        "silverstripe/taxonomy": "^1.2",
+        "mustangostang/spyc": "<=0.6.2"
     },
     "suggest": {
         "undefinedoffset/sortablegridfield": "Allow documents to be reordered via drag-and-drop"
diff --git a/tests/DMSEmbargoTest.php b/tests/DMSEmbargoTest.php
index bd5faed..484444f 100644
--- a/tests/DMSEmbargoTest.php
+++ b/tests/DMSEmbargoTest.php
@@ -73,7 +73,7 @@ class DMSEmbargoTest extends SapphireTest
         $this->assertFalse($doc->isEmbargoed(), "Document is not embargoed");
         $this->assertTrue($doc->isExpired(), "Document is expired");
 
-        $expireTime = "2019-04-05 11:43:13";
+        $expireTime = "2069-12-12 17:10:13";
         $doc->expireAtDate($expireTime);
         $this->assertFalse($doc->isHidden(), "Document is not hidden");
         $this->assertFalse($doc->isEmbargoed(), "Document is not embargoed");
@@ -114,7 +114,7 @@ class DMSEmbargoTest extends SapphireTest
         $this->assertFalse($doc->isEmbargoed(), "Document is not embargoed");
         $this->assertFalse($doc->isExpired(), "Document is not expired");
 
-        $embargoTime = "2019-04-05 11:43:13";
+        $embargoTime = "2069-12-12 17:10:13";
         $doc->embargoUntilDate($embargoTime);
         $this->assertTrue($doc->isHidden(), "Document is hidden");
         $this->assertTrue($doc->isEmbargoed(), "Document is embargoed");