diff --git a/core/Dockerfile b/core/Dockerfile
index 093d711..4fad6c1 100644
--- a/core/Dockerfile
+++ b/core/Dockerfile
@@ -15,10 +15,8 @@ RUN \
         dl_and_package_community "core"; \
     fi; \
     echo "deb [${KOPANO_REPOSITORY_FLAGS}] ${KOPANO_CORE_REPOSITORY_URL} ./" > /etc/apt/sources.list.d/kopano.list; \
-    # save kopano version if supported kopano
-    if [ ! -f /kopano/buildversion ]; then \
-        echo "core-${KOPANO_CORE_VERSION}" > /kopano/buildversion; \
-    fi; \
+    # save kopano version
+    echo "core-${KOPANO_CORE_VERSION}" > /kopano/buildversion; \
     # install apt key if supported kopano
     if [ ${RELEASE_KEY_DOWNLOAD} -eq 1 ]; then \
         curl -s -S -o - "${KOPANO_CORE_REPOSITORY_URL}/Release.key" | apt-key add -; \