diff --git a/package.json b/package.json
index d02416eed2409e78ba07795b6c1b5478de2cd27c..3748eff882a35fb4f37fe4b3c360f7bd2e2eda7c 100644
--- a/package.json
+++ b/package.json
@@ -71,7 +71,7 @@
   "devDependencies": {
     "coveralls": "2.11.4",
     "duniter-bma": "^1.1.2",
-    "duniter-crawler": "^1.1.4",
+    "duniter-crawler": "1.1.4",
     "duniter-keypair": "^1.1.3",
     "duniter-prover": "^1.1.2",
     "eslint": "3.13.1",
diff --git a/yarn.lock b/yarn.lock
index fcfeab17e3499f44704332396f98de1f90fadca8..757a62fa66ed3f0801825fb68e9a826528eaac27 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -736,9 +736,9 @@ duniter-common@^1.0.0:
     node-pre-gyp "0.6.32"
     tweetnacl "0.14.3"
 
-duniter-crawler@^1.1.0, duniter-crawler@^1.1.4:
-  version "1.3.2"
-  resolved "https://registry.yarnpkg.com/duniter-crawler/-/duniter-crawler-1.3.2.tgz#088cdc52f6dd7d0e951b7a276757d749e3e2ff40"
+duniter-crawler@1.1.4, duniter-crawler@^1.1.0:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/duniter-crawler/-/duniter-crawler-1.1.4.tgz#fe6544c01aae0e0041ae46176118b57ebf46c0d1"
   dependencies:
     async "2.2.0"
     co "4.6.0"
@@ -817,8 +817,8 @@ errorhandler@1.5.0:
     escape-html "~1.0.3"
 
 es5-ext@^0.10.14, es5-ext@^0.10.9, es5-ext@~0.10.14:
-  version "0.10.19"
-  resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.19.tgz#7135e0b40dfe4b62f92a7068e3c4fae2f518dccd"
+  version "0.10.20"
+  resolved "https://registry.yarnpkg.com/es5-ext/-/es5-ext-0.10.20.tgz#72a9b4fd5832797ba1bb65dceb2e25c04241c492"
   dependencies:
     es6-iterator "2"
     es6-symbol "~3.1"
@@ -872,11 +872,11 @@ escape-html@~1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
 
-escape-string-regexp@1.0.2, escape-string-regexp@^1.0.2:
+escape-string-regexp@1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.2.tgz#4dbc2fe674e71949caf3fb2695ce7f2dc1d9a8d1"
 
-escape-string-regexp@^1.0.5:
+escape-string-regexp@^1.0.2, escape-string-regexp@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
 
@@ -1708,20 +1708,13 @@ js-yaml@3.0.1:
     argparse "~ 0.1.11"
     esprima "~ 1.0.2"
 
-js-yaml@3.8.2:
+js-yaml@3.8.2, js-yaml@3.x, js-yaml@^3.2.5, js-yaml@^3.5.1:
   version "3.8.2"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.8.2.tgz#02d3e2c0f6beab20248d412c352203827d786721"
   dependencies:
     argparse "^1.0.7"
     esprima "^3.1.1"
 
-js-yaml@3.x, js-yaml@^3.2.5, js-yaml@^3.5.1:
-  version "3.8.4"
-  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.8.4.tgz#520b4564f86573ba96662af85a8cafa7b4b5a6f6"
-  dependencies:
-    argparse "^1.0.7"
-    esprima "^3.1.1"
-
 jsbn@~0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/jsbn/-/jsbn-0.1.1.tgz#a5e654c2e5a2deb5f201d96cefbca80c0ef2f513"