diff --git a/CHANGES.md b/CHANGES.md
index f27078b..d625f17 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -6,88 +6,88 @@
 
 ## 1.3.6
 
- - Remove leading newline from signing string (#2)
- - Add colon after (request-target) in docs (joyent#120)
+* Remove leading newline from signing string (#2)
+* Add colon after (request-target) in docs (joyent#120)
 
 ## 1.3.5
 
- - Add keyPassphrase option to signer (#115)
- - Add support for created and expires values (#110)
+* Add keyPassphrase option to signer (#115)
+* Add support for created and expires values (#110)
 
 ## 1.3.4
 
-- Fix breakage in v1.3.3 with the setting of the "algorithm" field in the
+* Fix breakage in v1.3.3 with the setting of the "algorithm" field in the
   Authorization header (#102)
 
 ## 1.3.3
 
 **Bad release. Use 1.3.4.**
 
- - Add support for an opaque param in the Authorization header (#101)
- - Add support for adding the keyId and algorithm params into the signing string (#100)
+* Add support for an opaque param in the Authorization header (#101)
+* Add support for adding the keyId and algorithm params into the signing string (#100)
 
 ## 1.3.2
 
-- Allow Buffers to be used for verifyHMAC (#98)
+* Allow Buffers to be used for verifyHMAC (#98)
 
 ## 1.3.1
 
-- Fix node 0.10 usage (#90)
+* Fix node 0.10 usage (#90)
 
 ## 1.3.0
 
 **Known issue:** This release broken http-signature with node 0.10.
 
-- Bump dependency `sshpk`
-- Add `Signature` header support (#83)
+* Bump dependency `sshpk`
+* Add `Signature` header support (#83)
 
 ## 1.2.0
 
-- Bump dependency `assert-plus`
-- Add ability to pass a custom header name
-- Replaced dependency `node-uuid` with `uuid`
+* Bump dependency `assert-plus`
+* Add ability to pass a custom header name
+* Replaced dependency `node-uuid` with `uuid`
 
 ## 1.1.1
 
-- Version of dependency `assert-plus` updated: old version was missing
+* Version of dependency `assert-plus` updated: old version was missing
   some license information
-- Corrected examples in `http_signing.md`, added auto-tests to
+* Corrected examples in `http_signing.md`, added auto-tests to
   automatically validate these examples
 
 ## 1.1.0
 
-- Bump version of `sshpk` dependency, remove peerDependency on it since
+* Bump version of `sshpk` dependency, remove peerDependency on it since
   it now supports exchanging objects between multiple versions of itself
   where possible
 
 ## 1.0.2
 
-- Bump min version of `jsprim` dependency, to include fixes for using
+* Bump min version of `jsprim` dependency, to include fixes for using
   http-signature with `browserify`
 
 ## 1.0.1
 
-- Bump minimum version of `sshpk` dependency, to include fixes for
+* Bump minimum version of `sshpk` dependency, to include fixes for
   whitespace tolerance in key parsing.
 
 ## 1.0.0
 
-- First semver release.
-- #36: Ensure verifySignature does not leak useful timing information
-- #42: Bring the library up to the latest version of the spec (including the
+* First semver release.
+* #36: Ensure verifySignature does not leak useful timing information
+* #42: Bring the library up to the latest version of the spec (including the
        request-target changes)
-- Support for ECDSA keys and signatures.
-- Now uses `sshpk` for key parsing, validation and conversion.
-- Fixes for #21, #47, #39 and compatibility with node 0.8
+* Support for ECDSA keys and signatures.
+* Now uses `sshpk` for key parsing, validation and conversion.
+* Fixes for #21, #47, #39 and compatibility with node 0.8
 
 ## 0.11.0
 
-- Split up HMAC and Signature verification to avoid vulnerabilities where a
+* Split up HMAC and Signature verification to avoid vulnerabilities where a
   key intended for use with one can be validated against the other method
   instead.
 
 ## 0.10.2
 
-- Updated versions of most dependencies.
-- Utility functions exported for PEM => SSH-RSA conversion.
-- Improvements to tests and examples.
+* Updated versions of most dependencies.
+* Utility functions exported for PEM => SSH-RSA conversion.
+* Improvements to tests and examples.
diff --git a/Jenkinsfile b/Jenkinsfile
index 7203bda..9ae026b 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,4 +1,4 @@
-@Library('jenkins-joylib@v1.0.2') _
+@Library('jenkins-joylib@v1.0.8') _
 
 pipeline {
 
@@ -80,7 +80,7 @@ pipeline {
 
     post {
         always {
-            joyMattermostNotification()
+            joySlackNotifications()
         }
     }
 }
diff --git a/package-lock.json b/package-lock.json
index 0020793..575c480 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "http-signature",
-  "version": "1.3.2",
+  "version": "1.3.6",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -150,18 +150,18 @@
       "integrity": "sha1-peZUwuWi3rXyAdls77yoDA7y9RM="
     },
     "json-schema": {
-      "version": "0.2.3",
-      "resolved": "https://registry.npmjs.org/json-schema/-/json-schema-0.2.3.tgz",
-      "integrity": "sha1-tIDIkuWaLwWVTOcnvT8qTogvnhM="
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/json-schema/-/json-schema-0.4.0.tgz",
+      "integrity": "sha512-es94M3nTIfsEPisRafak+HDLfHXnKBhV3vU5eqPcS3flIWqcxJWgXHXiey3YrpaNsanY5ei1VoYEbOzijuq9BA=="
     },
     "jsprim": {
-      "version": "1.4.1",
-      "resolved": "https://registry.npmjs.org/jsprim/-/jsprim-1.4.1.tgz",
-      "integrity": "sha1-MT5mvB5cwG5Di8G3SZwuXFastqI=",
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/jsprim/-/jsprim-2.0.2.tgz",
+      "integrity": "sha512-gqXddjPqQ6G40VdnI6T6yObEC+pDNvyP95wdQhkWkg7crHH3km5qP1FsOXEkzEQwnz6gz5qGTn1c2Y52wP3OyQ==",
       "requires": {
         "assert-plus": "1.0.0",
         "extsprintf": "1.3.0",
-        "json-schema": "0.2.3",
+        "json-schema": "0.4.0",
         "verror": "1.10.0"
       }
     },
diff --git a/package.json b/package.json
index ad18a2c..789db94 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
   },
   "dependencies": {
     "assert-plus": "^1.0.0",
-    "jsprim": "^1.2.2",
+    "jsprim": "^2.0.2",
     "sshpk": "^1.14.1"
   },
   "devDependencies": {