diff --git a/ci/docker/aarch64-unknown-linux-gnu/Dockerfile b/ci/docker/aarch64-unknown-linux-gnu/Dockerfile
index b0e980e49e51d7763f8f423fadb7df68647efcd0..2ba69e15442f38f9964975337928aac80b1dc678 100644
--- a/ci/docker/aarch64-unknown-linux-gnu/Dockerfile
+++ b/ci/docker/aarch64-unknown-linux-gnu/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \
   gcc libc6-dev ca-certificates \
diff --git a/ci/docker/arm-unknown-linux-gnueabihf/Dockerfile b/ci/docker/arm-unknown-linux-gnueabihf/Dockerfile
index 3a858e3884a3d6241b33cd112f5e0f5bec58918f..3824c0466401fda4c631aba150d80fd544a34914 100644
--- a/ci/docker/arm-unknown-linux-gnueabihf/Dockerfile
+++ b/ci/docker/arm-unknown-linux-gnueabihf/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \
   gcc libc6-dev ca-certificates \
diff --git a/ci/docker/i686-unknown-linux-gnu/Dockerfile b/ci/docker/i686-unknown-linux-gnu/Dockerfile
index 63450ff9e0efc793a850738a007d18e68c5cae3f..c149d84072912a2bbb38b6f82f987d92c5847eff 100644
--- a/ci/docker/i686-unknown-linux-gnu/Dockerfile
+++ b/ci/docker/i686-unknown-linux-gnu/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \
   gcc-multilib libc6-dev ca-certificates
diff --git a/ci/docker/i686-unknown-linux-musl/Dockerfile b/ci/docker/i686-unknown-linux-musl/Dockerfile
index 89d60ff7b59ee7fe939344cede16577634dd14a1..e906ce35dca05f463792289c398a565b850d8673 100644
--- a/ci/docker/i686-unknown-linux-musl/Dockerfile
+++ b/ci/docker/i686-unknown-linux-musl/Dockerfile
@@ -1,13 +1,13 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \
   gcc make libc6-dev git curl ca-certificates
-RUN curl https://www.musl-libc.org/releases/musl-1.1.14.tar.gz | \
+RUN curl https://www.musl-libc.org/releases/musl-1.1.15.tar.gz | \
     tar xzf - && \
-    cd musl-1.1.14 && \
+    cd musl-1.1.15 && \
     CFLAGS=-m32 ./configure --prefix=/musl-i686 --disable-shared --target=i686 && \
     make install -j4 && \
     cd .. && \
-    rm -rf musl-1.1.14
+    rm -rf musl-1.1.15
 ENV PATH=$PATH:/musl-i686/bin:/rust/bin
diff --git a/ci/docker/mips-unknown-linux-gnu/Dockerfile b/ci/docker/mips-unknown-linux-gnu/Dockerfile
index 6194026af6b85da7ddbfb369e81d6b5762aaebf1..eea1f652c3cbd8e17d3652177e304ebdba9a6eb7 100644
--- a/ci/docker/mips-unknown-linux-gnu/Dockerfile
+++ b/ci/docker/mips-unknown-linux-gnu/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \
diff --git a/ci/docker/mips-unknown-linux-musl/Dockerfile b/ci/docker/mips-unknown-linux-musl/Dockerfile
index 61fa35365729cabe3b7edaa638e0a42f2682c304..77c6adb435f1d51e3850d0583819d369934c4d18 100644
--- a/ci/docker/mips-unknown-linux-musl/Dockerfile
+++ b/ci/docker/mips-unknown-linux-musl/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \
diff --git a/ci/docker/mipsel-unknown-linux-musl/Dockerfile b/ci/docker/mipsel-unknown-linux-musl/Dockerfile
index bf7b45b75187f456efaf7c16fcd88aed8a067752..36c4d90ef68f665b99f64382d45b4e7dcabab48a 100644
--- a/ci/docker/mipsel-unknown-linux-musl/Dockerfile
+++ b/ci/docker/mipsel-unknown-linux-musl/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \
diff --git a/ci/docker/powerpc-unknown-linux-gnu/Dockerfile b/ci/docker/powerpc-unknown-linux-gnu/Dockerfile
index 052db490309f2b518613801fe502f5b0effb6b1d..d9d7db0f41dd234d2dacc9999eb5ddca85a54045 100644
--- a/ci/docker/powerpc-unknown-linux-gnu/Dockerfile
+++ b/ci/docker/powerpc-unknown-linux-gnu/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \
diff --git a/ci/docker/powerpc64-unknown-linux-gnu/Dockerfile b/ci/docker/powerpc64-unknown-linux-gnu/Dockerfile
index 03ce673e5bf35b8170030fc1c08c1ac8263e53f2..df0e6057b4f7fad86233d81947f7fbce66af0878 100644
--- a/ci/docker/powerpc64-unknown-linux-gnu/Dockerfile
+++ b/ci/docker/powerpc64-unknown-linux-gnu/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \
diff --git a/ci/docker/x86_64-unknown-linux-gnu/Dockerfile b/ci/docker/x86_64-unknown-linux-gnu/Dockerfile
index 294a0621ce946bf144a7f0af10a4ba3c2901cd12..4af3f834cbe6efff89ec6c67b40fc03d16bad92a 100644
--- a/ci/docker/x86_64-unknown-linux-gnu/Dockerfile
+++ b/ci/docker/x86_64-unknown-linux-gnu/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \
   gcc libc6-dev ca-certificates
diff --git a/ci/docker/x86_64-unknown-linux-musl/Dockerfile b/ci/docker/x86_64-unknown-linux-musl/Dockerfile
index f44003806e5946da325d6e60996b5a7482ca1fa4..9c2499948a287aba5c00ad538ee7eb58917d3260 100644
--- a/ci/docker/x86_64-unknown-linux-musl/Dockerfile
+++ b/ci/docker/x86_64-unknown-linux-musl/Dockerfile
@@ -1,13 +1,13 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \
   gcc make libc6-dev git curl ca-certificates
-RUN curl https://www.musl-libc.org/releases/musl-1.1.14.tar.gz | \
+RUN curl https://www.musl-libc.org/releases/musl-1.1.15.tar.gz | \
     tar xzf - && \
-    cd musl-1.1.14 && \
+    cd musl-1.1.15 && \
     ./configure --prefix=/musl-x86_64 && \
     make install -j4 && \
     cd .. && \
-    rm -rf musl-1.1.14
+    rm -rf musl-1.1.15
 ENV PATH=$PATH:/musl-x86_64/bin:/rust/bin
diff --git a/ci/docker/x86_64-unknown-openbsd/Dockerfile b/ci/docker/x86_64-unknown-openbsd/Dockerfile
index 41edc62382730d7fc37fba4f8f9e2d5ce8253ac0..1eea02e9dfa60f7833f1f6068c828517b1304f2a 100644
--- a/ci/docker/x86_64-unknown-openbsd/Dockerfile
+++ b/ci/docker/x86_64-unknown-openbsd/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:16.10
 
 RUN apt-get update
 RUN apt-get install -y --no-install-recommends \