diff --git a/sim/Cargo.lock b/sim/Cargo.lock
index 857adff..4e47140 100644
--- a/sim/Cargo.lock
+++ b/sim/Cargo.lock
@@ -130,6 +130,14 @@
 ]
 
 [[package]]
+name = "error-chain"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "backtrace 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "fuchsia-zircon"
 version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -184,7 +192,7 @@
 version = "0.1.0"
 dependencies = [
  "gcc 0.3.54 (registry+https://github.com/rust-lang/crates.io-index)",
- "lazy_static 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.34 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "simflash 0.1.0",
@@ -323,7 +331,7 @@
 name = "simflash"
 version = "0.1.0"
 dependencies = [
- "error-chain 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "error-chain 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.18 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -413,6 +421,7 @@
 "checksum either 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "740178ddf48b1a9e878e6d6509a1442a2d42fd2928aae8e7a6f8a36fb01981b3"
 "checksum env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3ddf21e73e016298f5cb37d6ef8e8da8e39f91f9ec8b0df44b7deb16a9f8cd5b"
 "checksum error-chain 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d9435d864e017c3c6afeac1654189b06cdb491cf2ff73dbf0d73b0f292f42ff8"
+"checksum error-chain 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ff511d5dc435d703f4971bc399647c9bc38e20cb41452e3b9feb4765419ed3f3"
 "checksum fuchsia-zircon 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f6c0581a4e363262e52b87f59ee2afe3415361c6ec35e665924eb08afe8ff159"
 "checksum fuchsia-zircon-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "43f3795b4bae048dc6123a6b972cadde2e676f9ded08aef6bb77f5f157684a82"
 "checksum gcc 0.3.54 (registry+https://github.com/rust-lang/crates.io-index)" = "5e33ec290da0d127825013597dbdfc28bee4964690c7ce1166cbc2a7bd08b1bb"
diff --git a/sim/mcuboot-sys/Cargo.toml b/sim/mcuboot-sys/Cargo.toml
index 37c30d1..7846875 100644
--- a/sim/mcuboot-sys/Cargo.toml
+++ b/sim/mcuboot-sys/Cargo.toml
@@ -27,7 +27,7 @@
 gcc = "0.3.54"
 
 [dependencies]
-lazy_static = "0.2"
+lazy_static = "1.0"
 libc = "0.2.0"
 log = "0.3"
 simflash = { path = "../simflash" }
diff --git a/sim/simflash/Cargo.toml b/sim/simflash/Cargo.toml
index ff49ce5..3a805d2 100644
--- a/sim/simflash/Cargo.toml
+++ b/sim/simflash/Cargo.toml
@@ -4,6 +4,6 @@
 authors = ["David Brown <david.brown@linaro.org>"]
 
 [dependencies]
-error-chain = "0.10.0"
+error-chain = "0.11.0"
 rand = "0.3.0"
 log = "0.3"