diff --git a/2.3/jessie/slim/Dockerfile b/2.3/jessie/slim/Dockerfile
index ea4b0a9d0d..26278a605d 100644
--- a/2.3/jessie/slim/Dockerfile
+++ b/2.3/jessie/slim/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:jessie
+FROM debian:jessie-slim
 
 RUN apt-get update \
 	&& apt-get install -y --no-install-recommends \
diff --git a/2.3/stretch/slim/Dockerfile b/2.3/stretch/slim/Dockerfile
index c66127e5b2..c72481c982 100644
--- a/2.3/stretch/slim/Dockerfile
+++ b/2.3/stretch/slim/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:stretch
+FROM debian:stretch-slim
 
 RUN apt-get update \
 	&& apt-get install -y --no-install-recommends \
diff --git a/2.4/jessie/slim/Dockerfile b/2.4/jessie/slim/Dockerfile
index 897c18cb97..6feb049e28 100644
--- a/2.4/jessie/slim/Dockerfile
+++ b/2.4/jessie/slim/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:jessie
+FROM debian:jessie-slim
 
 RUN apt-get update \
 	&& apt-get install -y --no-install-recommends \
diff --git a/2.4/stretch/slim/Dockerfile b/2.4/stretch/slim/Dockerfile
index 263907995b..0e8c1a2ee8 100644
--- a/2.4/stretch/slim/Dockerfile
+++ b/2.4/stretch/slim/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:stretch
+FROM debian:stretch-slim
 
 RUN apt-get update \
 	&& apt-get install -y --no-install-recommends \
diff --git a/2.5/stretch/slim/Dockerfile b/2.5/stretch/slim/Dockerfile
index e80f1b5387..ce8ec63161 100644
--- a/2.5/stretch/slim/Dockerfile
+++ b/2.5/stretch/slim/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:stretch
+FROM debian:stretch-slim
 
 RUN apt-get update \
 	&& apt-get install -y --no-install-recommends \
diff --git a/2.6/stretch/slim/Dockerfile b/2.6/stretch/slim/Dockerfile
index 0176c5143f..d964846e3c 100644
--- a/2.6/stretch/slim/Dockerfile
+++ b/2.6/stretch/slim/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:stretch
+FROM debian:stretch-slim
 
 RUN apt-get update \
 	&& apt-get install -y --no-install-recommends \
diff --git a/update.sh b/update.sh
index 4117eefe8b..3c404d05a0 100755
--- a/update.sh
+++ b/update.sh
@@ -85,6 +85,10 @@ for version in "${versions[@]}"; do
 		esac
 		template="Dockerfile-${template}.template"
 
+		if [ "$variant" = 'slim' ]; then
+			tag+='-slim'
+		fi
+
 		sed -r \
 			-e 's!%%VERSION%%!'"$version"'!g' \
 			-e 's!%%FULL_VERSION%%!'"$fullVersion"'!g' \