diff --git a/src/Api/Dockerfile b/src/Api/Dockerfile
index 95f4010c16..b92f79c22e 100644
--- a/src/Api/Dockerfile
+++ b/src/Api/Dockerfile
@@ -1,4 +1,4 @@
-FROM microsoft/aspnetcore:2.0.0
+FROM microsoft/aspnetcore:2.0.3
 
 RUN apt-get update \
     && apt-get install -y --no-install-recommends \
diff --git a/src/Icons/Dockerfile b/src/Icons/Dockerfile
index 57e54dca62..284986f3f7 100644
--- a/src/Icons/Dockerfile
+++ b/src/Icons/Dockerfile
@@ -1,4 +1,4 @@
-FROM microsoft/aspnetcore:2.0.0
+FROM microsoft/aspnetcore:2.0.3
 
 RUN apt-get update \
     && apt-get install -y --no-install-recommends \
diff --git a/src/Identity/Dockerfile b/src/Identity/Dockerfile
index 66c96c6132..7be60a2b64 100644
--- a/src/Identity/Dockerfile
+++ b/src/Identity/Dockerfile
@@ -1,4 +1,4 @@
-FROM microsoft/aspnetcore:2.0.0
+FROM microsoft/aspnetcore:2.0.3
 
 WORKDIR /app
 EXPOSE 80
diff --git a/util/MsSql/Dockerfile b/util/MsSql/Dockerfile
index 8d388850d5..938fa794cd 100644
--- a/util/MsSql/Dockerfile
+++ b/util/MsSql/Dockerfile
@@ -1,4 +1,4 @@
-FROM microsoft/mssql-server-linux:2017-GA
+FROM microsoft/mssql-server-linux:2017-CU2
 
 RUN apt-get update \
     && apt-get install -y --no-install-recommends \
diff --git a/util/Server/Dockerfile b/util/Server/Dockerfile
index 87c36dccce..6cd26a802d 100644
--- a/util/Server/Dockerfile
+++ b/util/Server/Dockerfile
@@ -1,2 +1,2 @@
-FROM microsoft/aspnetcore:2.0
+FROM microsoft/aspnetcore:2.0.3
 COPY obj/Docker/publish /bitwarden_server
diff --git a/util/Setup/Dockerfile b/util/Setup/Dockerfile
index dc156a19e7..e3a30f7b58 100644
--- a/util/Setup/Dockerfile
+++ b/util/Setup/Dockerfile
@@ -1,4 +1,4 @@
-FROM microsoft/dotnet:2.0.0-runtime
+FROM microsoft/dotnet:2.0-runtime
 
 RUN apt-get update \
     && apt-get install -y --no-install-recommends \