diff --git a/dotnet/2.1/Dockerfile b/dotnet/2.1/Dockerfile
index d2c26c9..7e21db0 100644
--- a/dotnet/2.1/Dockerfile
+++ b/dotnet/2.1/Dockerfile
@@ -10,7 +10,7 @@ RUN         apt update -y \
             && wget https://dot.net/v1/dotnet-install.sh \
             && D_V="$(curl -sSL https://dotnet.microsoft.com/en-us/download/dotnet/2.1 | grep -i  '<h3 id="sdk-2.*">SDK 2.1.*</h3>'  | head -1 | awk -F\" '{print $3}' | awk '{print $2;}' | sed 's/<\/h3>//g')" \ 
             && chmod +x dotnet-install.sh \
-			&& ./dotnet-install.sh -i /usr/share -v 2.1.818 \
+			&& ./dotnet-install.sh -i /usr/share -v $D_V \
             && ln -s /usr/share/dotnet /usr/bin/dotnet
 
 USER        container
diff --git a/dotnet/3.1/Dockerfile b/dotnet/3.1/Dockerfile
index c4b59c8..1c6b483 100644
--- a/dotnet/3.1/Dockerfile
+++ b/dotnet/3.1/Dockerfile
@@ -10,7 +10,7 @@ RUN         apt update -y \
             && wget https://dot.net/v1/dotnet-install.sh \
             && D_V="$(curl -sSL https://dotnet.microsoft.com/en-us/download/dotnet/3.1 | grep -i  '<h3 id="sdk-3.*">SDK 3.1.*</h3>'  | head -1 | awk -F\" '{print $3}' | awk '{print $2;}' | sed 's/<\/h3>//g')" \
             && chmod +x dotnet-install.sh \
-			&& ./dotnet-install.sh -i /usr/share -v 3.1.425 \
+			&& ./dotnet-install.sh -i /usr/share -v $D_V \
             && ln -s /usr/share/dotnet /usr/bin/dotnet