diff --git a/Gopkg.lock b/Gopkg.lock
index 8deb06378..fa8209d96 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -11,11 +11,11 @@
 
 [[projects]]
   branch = "master"
-  digest = "1:2c00f064ba355903866cbfbf3f7f4c0fe64af6638cc7d1b8bdcf3181bc67f1d8"
+  digest = "1:c0decf632843204d2b8781de7b26e7038584e2dcccc7e2f401e88ae85b1df2b7"
   name = "github.com/btcsuite/btcd"
   packages = ["btcec"]
   pruneopts = "UT"
-  revision = "f5e261fc9ec3437697fb31d8b38453c293204b29"
+  revision = "67e573d211ace594f1366b4ce9d39726c4b19bd0"
 
 [[projects]]
   digest = "1:1d8e1cb71c33a9470bbbae09bfec09db43c6bf358dfcae13cd8807c4e2a9a2bf"
@@ -28,12 +28,12 @@
   revision = "d4cc87b860166d00d6b5b9e0d3b3d71d6088d4d4"
 
 [[projects]]
-  digest = "1:a2c1d0e43bd3baaa071d1b9ed72c27d78169b2b269f71c105ac4ba34b1be4a39"
+  digest = "1:ffe9824d294da03b391f44e1ae8281281b4afc1bdaa9588c9097785e3af10cec"
   name = "github.com/davecgh/go-spew"
   packages = ["spew"]
   pruneopts = "UT"
-  revision = "346938d642f2ec3594ed81d874461961cd0faa76"
-  version = "v1.1.0"
+  revision = "8991bc29aa16c548c550c7ff78260e27b9ab7c73"
+  version = "v1.1.1"
 
 [[projects]]
   digest = "1:c7644c73a3d23741fdba8a99b1464e021a224b7e205be497271a8003a15ca41b"
@@ -83,12 +83,12 @@
   version = "v0.3.0"
 
 [[projects]]
-  digest = "1:c4a2528ccbcabf90f9f3c464a5fc9e302d592861bbfd0b7135a7de8a943d0406"
+  digest = "1:586ea76dbd0374d6fb649a91d70d652b7fe0ccffb8910a77468e7702e7901f3d"
   name = "github.com/go-stack/stack"
   packages = ["."]
   pruneopts = "UT"
-  revision = "259ab82a6cad3992b4e21ff5cac294ccb06474bc"
-  version = "v1.7.0"
+  revision = "2fee6af1a9795aafbe0253a0cfbdf668e1fb8a9a"
+  version = "v1.8.0"
 
 [[projects]]
   digest = "1:35621fe20f140f05a0c4ef662c26c0ab4ee50bca78aa30fe87d33120bd28165e"
@@ -136,8 +136,7 @@
   version = "v1.2.0"
 
 [[projects]]
-  branch = "master"
-  digest = "1:12247a2e99a060cc692f6680e5272c8adf0b8f572e6bce0d7095e624c958a240"
+  digest = "1:ea40c24cdbacd054a6ae9de03e62c5f252479b96c716375aace5c120d68647c8"
   name = "github.com/hashicorp/hcl"
   packages = [
     ".",
@@ -151,7 +150,8 @@
     "json/token",
   ]
   pruneopts = "UT"
-  revision = "ef8a98b0bbce4a65b5aa4c368430a80ddc533168"
+  revision = "8cb6e5b959231cc1119e43259c4a608f9c51a241"
+  version = "v1.0.0"
 
 [[projects]]
   digest = "1:870d441fe217b8e689d7949fef6e43efbc787e50f200cb1e70dbca9204a1d6be"
@@ -193,12 +193,12 @@
   version = "v1.0.1"
 
 [[projects]]
-  branch = "master"
-  digest = "1:5ab79470a1d0fb19b041a624415612f8236b3c06070161a910562f2b2d064355"
+  digest = "1:53bc4cd4914cd7cd52139990d5170d6dc99067ae31c56530621b18b35fc30318"
   name = "github.com/mitchellh/mapstructure"
   packages = ["."]
   pruneopts = "UT"
-  revision = "f15292f7a699fcc1a38a80977f80a046874ba8ac"
+  revision = "3536a929edddb9a5b34bd6861dc4a9647cb459fe"
+  version = "v1.1.2"
 
 [[projects]]
   digest = "1:95741de3af260a92cc5c7f3f3061e85273f5a81b5db20d4bd68da74bd521675e"
@@ -225,14 +225,16 @@
   version = "v1.0.0"
 
 [[projects]]
-  digest = "1:c1a04665f9613e082e1209cf288bf64f4068dcd6c87a64bf1c4ff006ad422ba0"
+  digest = "1:26663fafdea73a38075b07e8e9d82fc0056379d2be8bb4e13899e8fda7c7dd23"
   name = "github.com/prometheus/client_golang"
   packages = [
     "prometheus",
+    "prometheus/internal",
     "prometheus/promhttp",
   ]
   pruneopts = "UT"
-  revision = "ae27198cdd90bf12cd134ad79d1366a6cf49f632"
+  revision = "abad2d1bd44235a26707c172eab6bca5bf2dbad3"
+  version = "v0.9.1"
 
 [[projects]]
   branch = "master"
@@ -244,7 +246,7 @@
 
 [[projects]]
   branch = "master"
-  digest = "1:63b68062b8968092eb86bedc4e68894bd096ea6b24920faca8b9dcf451f54bb5"
+  digest = "1:db712fde5d12d6cdbdf14b777f0c230f4ff5ab0be8e35b239fc319953ed577a4"
   name = "github.com/prometheus/common"
   packages = [
     "expfmt",
@@ -252,11 +254,11 @@
     "model",
   ]
   pruneopts = "UT"
-  revision = "c7de2306084e37d54b8be01f3541a8464345e9a5"
+  revision = "0b1957f9d949dfa3084171a6ec5642b38055276a"
 
 [[projects]]
   branch = "master"
-  digest = "1:8c49953a1414305f2ff5465147ee576dd705487c35b15918fcd4efdc0cb7a290"
+  digest = "1:ef74914912f99c79434d9c09658274678bc85080ebe3ab32bec3940ebce5e1fc"
   name = "github.com/prometheus/procfs"
   packages = [
     ".",
@@ -265,7 +267,7 @@
     "xfs",
   ]
   pruneopts = "UT"
-  revision = "05ee40e3a273f7245e8777337fc7b46e533a9a92"
+  revision = "185b4288413d2a0dd0806f78c90dde719829e5ae"
 
 [[projects]]
   digest = "1:c4556a44e350b50a490544d9b06e9fba9c286c21d6c0e47f54f3a9214597298c"
@@ -275,23 +277,23 @@
   revision = "e2704e165165ec55d062f5919b4b29494e9fa790"
 
 [[projects]]
-  digest = "1:bd1ae00087d17c5a748660b8e89e1043e1e5479d0fea743352cda2f8dd8c4f84"
+  digest = "1:6a4a11ba764a56d2758899ec6f3848d24698d48442ebce85ee7a3f63284526cd"
   name = "github.com/spf13/afero"
   packages = [
     ".",
     "mem",
   ]
   pruneopts = "UT"
-  revision = "787d034dfe70e44075ccc060d346146ef53270ad"
-  version = "v1.1.1"
+  revision = "d40851caa0d747393da1ffb28f7f9d8b4eeffebd"
+  version = "v1.1.2"
 
 [[projects]]
-  digest = "1:516e71bed754268937f57d4ecb190e01958452336fa73dbac880894164e91c1f"
+  digest = "1:08d65904057412fc0270fc4812a1c90c594186819243160dc779a402d4b6d0bc"
   name = "github.com/spf13/cast"
   packages = ["."]
   pruneopts = "UT"
-  revision = "8965335b8c7107321228e3e3702cab9832751bac"
-  version = "v1.2.0"
+  revision = "8c9545af88b134710ab1cd196795e7f2388358d7"
+  version = "v1.3.0"
 
 [[projects]]
   digest = "1:7ffc0983035bc7e297da3688d9fe19d60a420e9c38bef23f845c53788ed6a05e"
@@ -302,20 +304,20 @@
   version = "v0.0.1"
 
 [[projects]]
-  branch = "master"
-  digest = "1:080e5f630945ad754f4b920e60b4d3095ba0237ebf88dc462eb28002932e3805"
+  digest = "1:68ea4e23713989dc20b1bded5d9da2c5f9be14ff9885beef481848edd18c26cb"
   name = "github.com/spf13/jwalterweatherman"
   packages = ["."]
   pruneopts = "UT"
-  revision = "7c0cea34c8ece3fbeb2b27ab9b59511d360fb394"
+  revision = "4a4406e478ca629068e7768fc33f3f044173c0a6"
+  version = "v1.0.0"
 
 [[projects]]
-  digest = "1:9424f440bba8f7508b69414634aef3b2b3a877e522d8a4624692412805407bb7"
+  digest = "1:c1b1102241e7f645bc8e0c22ae352e8f0dc6484b6cb4d132fa9f24174e0119e2"
   name = "github.com/spf13/pflag"
   packages = ["."]
   pruneopts = "UT"
-  revision = "583c0c0531f06d5278b7d917446061adc344b5cd"
-  version = "v1.0.1"
+  revision = "298182f68c66c05229eb03ac171abe6e309ee79a"
+  version = "v1.0.3"
 
 [[projects]]
   digest = "1:f8e1a678a2571e265f4bf91a3e5e32aa6b1474a55cb0ea849750cc177b664d96"
@@ -338,7 +340,7 @@
 
 [[projects]]
   branch = "master"
-  digest = "1:b3cfb8d82b1601a846417c3f31c03a7961862cb2c98dcf0959c473843e6d9a2b"
+  digest = "1:9ff9e1808adfc43f788f1c1e9fd2660c285b522243da985a4c043ec6f2a2d736"
   name = "github.com/syndtr/goleveldb"
   packages = [
     "leveldb",
@@ -355,7 +357,7 @@
     "leveldb/util",
   ]
   pruneopts = "UT"
-  revision = "c4c61651e9e37fa117f53c5a906d3b63090d8445"
+  revision = "f9080354173f192dfc8821931eacf9cfd6819253"
 
 [[projects]]
   digest = "1:605b6546f3f43745695298ec2d342d3e952b6d91cdf9f349bea9315f677d759f"
@@ -377,16 +379,16 @@
   revision = "d8387025d2b9d158cf4efb07e7ebf814bcce2057"
 
 [[projects]]
-  digest = "1:e0a2a4be1e20c305badc2b0a7a9ab7fef6da500763bec23ab81df3b5f9eec9ee"
+  digest = "1:2c971a45c89ca2ccc735af50919cdee05fbdc54d4bf50625073693300e31ead8"
   name = "github.com/tendermint/go-amino"
   packages = ["."]
   pruneopts = "UT"
-  revision = "a8328986c1608950fa5d3d1c0472cccc4f8fc02c"
-  version = "v0.12.0-rc0"
+  revision = "faa6e731944e2b7b6a46ad202902851e8ce85bee"
+  version = "v0.12.0"
 
 [[projects]]
   branch = "master"
-  digest = "1:c31a37cafc12315b8bd745c8ad6a006ac25350472488162a821e557b3e739d67"
+  digest = "1:bcc56b3f6583305a362d58adfadd4448ef7d6b112c32fb6b6fc5960c26c4f7c7"
   name = "golang.org/x/crypto"
   packages = [
     "bcrypt",
@@ -405,7 +407,7 @@
     "salsa20/salsa",
   ]
   pruneopts = "UT"
-  revision = "56440b844dfe139a8ac053f4ecac0b20b79058f4"
+  revision = "e4dc69e5b2fd71dcaf8bd5d054eb936deb78d1fa"
 
 [[projects]]
   digest = "1:d36f55a999540d29b6ea3c2ea29d71c76b1d9853fdcd3e5c5cb4836f2ba118f1"
@@ -425,14 +427,14 @@
 
 [[projects]]
   branch = "master"
-  digest = "1:bb0fe59917bdd5b89f49b9a8b26e5f465e325d9223b3a8e32254314bdf51e0f1"
+  digest = "1:e9609f7e36a3fecb7dc9e3a15f9881011f9d8c42f94c9d5da231eb0c07826dc8"
   name = "golang.org/x/sys"
   packages = [
     "cpu",
     "unix",
   ]
   pruneopts = "UT"
-  revision = "3dc4335d56c789b04b0ba99b7a37249d9b614314"
+  revision = "66b7b1311ac80bbafcd2daeef9a5e6e2cd1e2399"
 
 [[projects]]
   digest = "1:a2ab62866c75542dd18d2b069fec854577a20211d7c0ea6ae746072a1dccdd18"
@@ -459,11 +461,11 @@
 
 [[projects]]
   branch = "master"
-  digest = "1:077c1c599507b3b3e9156d17d36e1e61928ee9b53a5b420f10f28ebd4a0b275c"
+  digest = "1:56b0bca90b7e5d1facf5fbdacba23e4e0ce069d25381b8e2f70ef1e7ebfb9c1a"
   name = "google.golang.org/genproto"
   packages = ["googleapis/rpc/status"]
   pruneopts = "UT"
-  revision = "daca94659cb50e9f37c1b834680f2e46358f10b0"
+  revision = "b5d43981345bdb2c233eb4bf3277847b48c6fdc6"
 
 [[projects]]
   digest = "1:2dab32a43451e320e49608ff4542fdfc653c95dcc35d0065ec9c6c3dd540ed74"
diff --git a/Gopkg.toml b/Gopkg.toml
index d3bca19e8..3372e82d4 100644
--- a/Gopkg.toml
+++ b/Gopkg.toml
@@ -89,11 +89,6 @@
   name = "github.com/tendermint/btcd"
   revision = "e5840949ff4fff0c56f9b6a541e22b63581ea9df"
 
-# Haven't made a release since 2016.
-[[constraint]]
-  name = "github.com/prometheus/client_golang"
-  revision = "ae27198cdd90bf12cd134ad79d1366a6cf49f632"
-
 [[constraint]]
   name = "github.com/rcrowley/go-metrics"
   revision = "e2704e165165ec55d062f5919b4b29494e9fa790"