diff --git a/lang/go/box.rb b/lang/go/box.rb
index 3bda867..70d598e 100644
--- a/lang/go/box.rb
+++ b/lang/go/box.rb
@@ -1,11 +1,11 @@
 from "xena/alpine"
 
 run %q[ apk add --no-cache wget && cd /usr/local \
-     && wget -O go.tgz https://storage.googleapis.com/golang/go1.8.1.linux-amd64.tar.gz \
+     && wget -O go.tgz https://storage.googleapis.com/golang/go1.8.3.linux-amd64.tar.gz \
      && tar xf go.tgz && rm go.tgz ]
 
 env "PATH" => "$PATH:/usr/local/go/bin"
 
 flatten
 tag "xena/go:1.8"
-tag "xena/go:1.8.1"
+tag "xena/go:1.8.3"
diff --git a/lang/nim/box.rb b/lang/nim/box.rb
index 051e6e8..38b3b8e 100644
--- a/lang/nim/box.rb
+++ b/lang/nim/box.rb
@@ -5,7 +5,7 @@ from "xena/alpine"
 
 # update envvars
 env "PATH" => "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/opt/nim/bin:/root/.nimble/bin",
-    "NIM_VERSION" => "0.16.0"
+    "NIM_VERSION" => "0.17.2"
 
 # system deps
 run %q[ apk add --no-cache --virtual nim-compiler-deps wget libc-dev gcc libgcc git perl xz tar \
@@ -22,4 +22,4 @@ run %q[ mkdir -p /opt && cd /opt \
 
 # shipit
 flatten
-tag "xena/nim:0.16.0"
+tag "xena/nim:0.17.2"