diff --git a/Dockerfile b/Dockerfile
index 50bc31c..08f2a8d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,13 +14,16 @@ FROM $KUBEVIRTFROM
 # since TARGETARCH is not defined in OBS builds yet. Default to amd64.
 ARG TARGETARCH=amd64
 
+# Mandatory labels for the build service:
+#   https://en.opensuse.org/Building_derived_containers
 # labelprefix=%%LABELPREFIX%%
-PREFIXEDLABEL org.opencontainers.image.title="kubevirt virt-launcher container"
-PREFIXEDLABEL org.opencontainers.image.description="Container to host VM processes for kubevirt"
-PREFIXEDLABEL org.opencontainers.image.created="%BUILDTIME%"
-PREFIXEDLABEL org.opencontainers.image.version="%%PKG_VERSION%%.%RELEASE%"
-PREFIXEDLABEL org.openbuildservice.disturl="%DISTURL%"
-PREFIXEDLABEL org.opensuse.reference="%%REGISTRY%%/%%TAGPREFIX%%/virt-launcher:%%PKG_VERSION%%.%RELEASE%"
+LABEL org.opencontainers.image.title="kubevirt virt-launcher container"
+LABEL org.opencontainers.image.description="Container to host VM processes for kubevirt"
+LABEL org.opencontainers.image.created="%BUILDTIME%"
+LABEL org.opencontainers.image.version="%%PKG_VERSION%%.%RELEASE%"
+LABEL org.openbuildservice.disturl="%DISTURL%"
+LABEL org.opensuse.reference="%%REGISTRY%%/%%TAGPREFIX%%/virt-launcher:%%PKG_VERSION%%.%RELEASE%"
+# endlabelprefix
 
 RUN zypper -n install \
               augeas \
diff --git a/_constraints b/_constraints
index a6a4866..4988ecd 100644
--- a/_constraints
+++ b/_constraints
@@ -1,7 +1,7 @@
 <constraints>
   <hardware>
     <disk>
-      <size unit="G">6</size>
+      <size unit="G">10</size>
     </disk>
   </hardware>
 </constraints>
diff --git a/virt-launcher-container.changes b/virt-launcher-container.changes
index 614e13b..c4a58e9 100644
--- a/virt-launcher-container.changes
+++ b/virt-launcher-container.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Aug  4 06:27:58 UTC 2022 - Vasily Ulyanov <vasily.ulyanov@suse.com>
+
+- Use standard LABEL directive to add mandatory labels
+
 -------------------------------------------------------------------
 Wed Apr 27 16:30:17 UTC 2022 - Vasily Ulyanov <vasily.ulyanov@suse.com>