diff --git a/gradle.properties b/gradle.properties
index 9ccd41a8f..7e990ad87 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,4 +1,4 @@
-biocollectVersion=6.8-REFASSESS-CAS-SNAPSHOT
+biocollectVersion=6.6.6-REFASSESS-SNAPSHOT
 grailsVersion=5.1.9
 grailsGradlePluginVersion=5.1.5
 assetPipelineVersion=3.3.4