diff --git a/src/Api/Dockerfile b/src/Api/Dockerfile
index b92f79c22e..24aeab0973 100644
--- a/src/Api/Dockerfile
+++ b/src/Api/Dockerfile
@@ -1,4 +1,4 @@
-FROM microsoft/aspnetcore:2.0.3
+FROM microsoft/aspnetcore:2.0.5
 
 RUN apt-get update \
     && apt-get install -y --no-install-recommends \
diff --git a/src/Identity/Dockerfile b/src/Identity/Dockerfile
index 7be60a2b64..914d81be57 100644
--- a/src/Identity/Dockerfile
+++ b/src/Identity/Dockerfile
@@ -1,4 +1,4 @@
-FROM microsoft/aspnetcore:2.0.3
+FROM microsoft/aspnetcore:2.0.5
 
 WORKDIR /app
 EXPOSE 80
diff --git a/util/MsSql/Dockerfile b/util/MsSql/Dockerfile
index 938fa794cd..c6c9d0db81 100644
--- a/util/MsSql/Dockerfile
+++ b/util/MsSql/Dockerfile
@@ -1,4 +1,4 @@
-FROM microsoft/mssql-server-linux:2017-CU2
+FROM microsoft/mssql-server-linux:2017-CU4
 
 RUN apt-get update \
     && apt-get install -y --no-install-recommends \
diff --git a/util/Server/Dockerfile b/util/Server/Dockerfile
index 6cd26a802d..ae5f57cc39 100644
--- a/util/Server/Dockerfile
+++ b/util/Server/Dockerfile
@@ -1,2 +1,2 @@
-FROM microsoft/aspnetcore:2.0.3
+FROM microsoft/aspnetcore:2.0.5
 COPY obj/Docker/publish /bitwarden_server
diff --git a/util/Setup/Dockerfile b/util/Setup/Dockerfile
index 8aee82542d..4b95e2c74a 100644
--- a/util/Setup/Dockerfile
+++ b/util/Setup/Dockerfile
@@ -1,4 +1,4 @@
-FROM microsoft/dotnet:2.0.3-runtime
+FROM microsoft/dotnet:2.0.5-runtime
 
 RUN apt-get update \
     && apt-get install -y --no-install-recommends \