diff --git a/package.json b/package.json
index 221fdd0..296e8e4 100644
--- a/package.json
+++ b/package.json
@@ -48,12 +48,12 @@
     "cross-env": "5.1.3",
     "deps_downloader": "https://s3.eu-west-2.amazonaws.com/deps-downloader/deps_downloader-0.3.0.tgz",
     "enum": "^2.3.0",
-    "ffi": "^2.3.0",
+    "ffi-napi": "2.4.5",
     "mime": "^2.0.3",
     "multihashes": "^0.4.14",
     "rdflib": "^0.19.1",
-    "ref": "^1.3.3",
     "ref-array": "^1.2.0",
+    "ref-napi": "1.4.1",
     "ref-struct": "^1.1.0",
     "weak-napi": "1.0.3"
   },
diff --git a/src/native/_app.js b/src/native/_app.js
index 4b2154d..181c17e 100644
--- a/src/native/_app.js
+++ b/src/native/_app.js
@@ -11,7 +11,7 @@
 // relating to use of the SAFE Network Software.
 
 
-const ffi = require('ffi');
+const ffi = require('ffi-napi');
 const ref = require("ref");
 const Struct = require('ref-struct');
 const makeError = require('./_error.js');
diff --git a/src/native/_auth.js b/src/native/_auth.js
index d08bf62..c8ccb9a 100644
--- a/src/native/_auth.js
+++ b/src/native/_auth.js
@@ -11,10 +11,10 @@
 // relating to use of the SAFE Network Software.
 
 
-const ffi = require('ffi');
+const ffi = require('ffi-napi');
 const Enum = require('enum');
 const ArrayType = require('ref-array');
-const ref = require('ref');
+const ref = require('ref-napi');
 const Struct = require('ref-struct');
 const base = require('./_base.js');
 const makeError = require('./_error.js');
diff --git a/src/native/_base.js b/src/native/_base.js
index e8620cb..5c8497c 100644
--- a/src/native/_base.js
+++ b/src/native/_base.js
@@ -13,8 +13,8 @@
 
 const makeError = require('./_error.js');
 const errConst = require('../error_const');
-const ffi = require('ffi');
-const ref = require('ref');
+const ffi = require('ffi-napi');
+const ref = require('ref-napi');
 const Enum = require('enum');
 const Struct = require('ref-struct');
 const ArrayType = require('ref-array');
diff --git a/src/native/_cipher_opt.js b/src/native/_cipher_opt.js
index 047a5d4..7b14ec3 100644
--- a/src/native/_cipher_opt.js
+++ b/src/native/_cipher_opt.js
@@ -11,7 +11,7 @@
 // relating to use of the SAFE Network Software.
 
 
-const ffi = require('ffi');
+const ffi = require('ffi-napi');
 const ref = require("ref");
 const Struct = require('ref-struct');
 const base = require('./_base');
diff --git a/src/native/_crypto.js b/src/native/_crypto.js
index 417c6a1..d0b7506 100644
--- a/src/native/_crypto.js
+++ b/src/native/_crypto.js
@@ -11,7 +11,7 @@
 // relating to use of the SAFE Network Software.
 
 
-const ffi = require('ffi');
+const ffi = require('ffi-napi');
 const ref = require("ref");
 const Struct = require('ref-struct');
 const base = require('./_base');
diff --git a/src/native/_immutable.js b/src/native/_immutable.js
index 8c324e1..0da3192 100644
--- a/src/native/_immutable.js
+++ b/src/native/_immutable.js
@@ -11,7 +11,7 @@
 // relating to use of the SAFE Network Software.
 
 
-const ffi = require('ffi');
+const ffi = require('ffi-napi');
 const ref = require("ref");
 const Struct = require('ref-struct');
 const base = require('./_base');
diff --git a/src/native/_mutable.js b/src/native/_mutable.js
index 2b0bef1..77dec17 100644
--- a/src/native/_mutable.js
+++ b/src/native/_mutable.js
@@ -11,7 +11,7 @@
 // relating to use of the SAFE Network Software.
 
 
-const ffi = require('ffi');
+const ffi = require('ffi-napi');
 const ref = require("ref");
 const Struct = require('ref-struct');
 const Enum = require('enum');
diff --git a/src/native/_nfs.js b/src/native/_nfs.js
index cc256b4..9364cbe 100644
--- a/src/native/_nfs.js
+++ b/src/native/_nfs.js
@@ -11,7 +11,7 @@
 // relating to use of the SAFE Network Software.
 
 
-const ffi = require('ffi');
+const ffi = require('ffi-napi');
 const ref = require("ref");
 const Struct = require('ref-struct');
 const base = require('./_base');
diff --git a/src/native/_system_uri.js b/src/native/_system_uri.js
index 8612902..624ecec 100644
--- a/src/native/_system_uri.js
+++ b/src/native/_system_uri.js
@@ -12,8 +12,8 @@
 
 
 const path = require('path');
-const FFI = require('ffi');
-const ref = require('ref');
+const FFI = require('ffi-napi');
+const ref = require('ref-napi');
 const { getSystemUriLibFilename } = require('../helpers');
 const makeError = require('./_error.js');
 const h = require('./helpers');
diff --git a/src/native/_testing.js b/src/native/_testing.js
index 6260d58..036229a 100644
--- a/src/native/_testing.js
+++ b/src/native/_testing.js
@@ -11,7 +11,7 @@
 // relating to use of the SAFE Network Software.
 
 
-const ref = require('ref');
+const ref = require('ref-napi');
 const { types: t, helpers: h } = require("./_base");
 const { types } = require('./_auth');
 
diff --git a/src/native/lib.js b/src/native/lib.js
index 0b8ccdb..5041f77 100644
--- a/src/native/lib.js
+++ b/src/native/lib.js
@@ -13,7 +13,7 @@
 
 const path = require('path');
 const fs = require('fs');
-const FFI = require('ffi');
+const FFI = require('ffi-napi');
 const { getSafeAppLibFilename } = require('../helpers');
 const { getSystemUriLibFilename } = require('../helpers');
 const os = require('os');
diff --git a/yarn.lock b/yarn.lock
index 42c0406..bf6fe40 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -383,11 +383,6 @@ bindings@1, bindings@^1.3.0:
   dependencies:
     file-uri-to-path "1.0.0"
 
-bindings@~1.2.0:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/bindings/-/bindings-1.2.1.tgz#14ad6113812d2d37d72e67b4cacb4bb726505f11"
-  integrity sha1-FK1hE4EtLTfXLme0ystLtyZQXxE=
-
 bluebird@~3.5.0:
   version "3.5.4"
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.4.tgz#d6cc661595de30d5b3af5fcedd3c0b3ef6ec5714"
@@ -1327,16 +1322,17 @@ fast-levenshtein@~2.0.4:
   resolved "https://registry.yarnpkg.com/fast-levenshtein/-/fast-levenshtein-2.0.6.tgz#3d8a5c66883a16a30ca8643e851f19baa7797917"
   integrity sha1-PYpcZog6FqMMqGQ+hR8Zuqd5eRc=
 
-ffi@^2.3.0:
-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/ffi/-/ffi-2.3.0.tgz#fa1a7b3d85c0fa8c83d96947a64b5192bc47f858"
-  integrity sha512-vkPA9Hf9CVuQ5HeMZykYvrZF2QNJ/iKGLkyDkisBnoOOFeFXZQhUPxBARPBIZMJVulvBI2R+jgofW03gyPpJcQ==
+ffi-napi@2.4.5:
+  version "2.4.5"
+  resolved "https://registry.yarnpkg.com/ffi-napi/-/ffi-napi-2.4.5.tgz#12e807f238f8c68fc094fc46c1ce5193c2ab64f8"
+  integrity sha512-24Et/c5/sRvZvpOZ9nvkK0Be1S8A1Vkt6aJSKGaohOGb5FwV4+EmecaTtNhN4TCLJDjYC8z/k4X8W1SC5IK/fw==
   dependencies:
-    bindings "~1.2.0"
-    debug "2"
-    nan "2"
-    ref "1"
-    ref-struct "1"
+    bindings "^1.3.0"
+    debug "^3.1.0"
+    get-uv-event-loop-napi-h "^1.0.5"
+    node-addon-api "1.5.0"
+    ref-napi "^1.4.0"
+    ref-struct-di "^1.1.0"
 
 figures@^1.3.5:
   version "1.7.0"
@@ -1511,7 +1507,7 @@ get-symbol-from-current-process-h@^1.0.1:
   resolved "https://registry.yarnpkg.com/get-symbol-from-current-process-h/-/get-symbol-from-current-process-h-1.0.1.tgz#7e4809087e7d2f3a78a785b36f787e2183ba4c5d"
   integrity sha512-QvP1+tCDjgTiu+akjdEYd8eK8MFYy6nRCRNjfiCeQB9RJEHQZpN+WE+CVqPRNqjIVMwSqd0WiD008B+b7iIdaA==
 
-get-uv-event-loop-napi-h@^1.0.2:
+get-uv-event-loop-napi-h@^1.0.2, get-uv-event-loop-napi-h@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/get-uv-event-loop-napi-h/-/get-uv-event-loop-napi-h-1.0.5.tgz#1904a1dc1fa6df7487c9e8eaf87302bcc9e33e47"
   integrity sha512-uWDHId313vRTyqeLhlLWJS0CJOP8QXY5en/9Pv14dnPvAlRfKBfD6h2EDtoy7jxxOIWB9QgzYK16VCN3pCZOBg==
@@ -2607,7 +2603,12 @@ nice-try@^1.0.4:
   resolved "https://registry.yarnpkg.com/nice-try/-/nice-try-1.0.5.tgz#a3378a7696ce7d223e88fc9b764bd7ef1089e366"
   integrity sha512-1nh45deeb5olNY7eX82BkPO7SSxR5SSYJiPTrTdFUVYwAl8CKMA5N9PjTYkHiRjisVcxcQ1HXdLhx2qxxJzLNQ==
 
-node-addon-api@^1.1.0:
+node-addon-api@1.5.0:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/node-addon-api/-/node-addon-api-1.5.0.tgz#55be6b3da36e746f4b1f2af16c2adf67647d1ff8"
+  integrity sha512-YsL/8dpBWxCFj3wAVAa/ceN4TlT8lACK8EgpuN0q/4ecflWHDuKpodb+tt7Rx22r/6FJ2f+IT25XSsXnZGwYgA==
+
+node-addon-api@^1.1.0, node-addon-api@^1.6.2:
   version "1.6.3"
   resolved "https://registry.yarnpkg.com/node-addon-api/-/node-addon-api-1.6.3.tgz#3998d4593e2dca2ea82114670a4eb003386a9fe1"
   integrity sha512-FXWH6mqjWgU8ewuahp4spec8LkroFZK2NicOv6bNwZC3kcwZUI8LeZdG80UzTSLLhK4T7MsgNwlYDVRlDdfTDg==
@@ -3162,7 +3163,23 @@ ref-array@^1.2.0:
     debug "2"
     ref "1"
 
-ref-struct@1, ref-struct@^1.1.0:
+ref-napi@1.4.1, ref-napi@^1.4.0:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/ref-napi/-/ref-napi-1.4.1.tgz#ab129c5d4c2b4ccbb50503c09c315334a5a3a77b"
+  integrity sha512-7AK1YNzEO2z8DLFPTf+AvOViCUgLK0stM4hnR0HWLb71Bo10UJWIpMDN3Tz7BNnUJhsj2pHWfjxugcaRvCF7zA==
+  dependencies:
+    bindings "^1.3.0"
+    debug "^3.1.0"
+    node-addon-api "^1.6.2"
+
+ref-struct-di@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/ref-struct-di/-/ref-struct-di-1.1.0.tgz#d252144eb449608ccf2e5c12fda35f8153bd3760"
+  integrity sha512-gghZITj/iQwdwFDduZ6T8kL2B2ogInlOz7AOB0ggFoEc7akAKMcDrbzh3OIPk13Kxy8U2bHPvN6nejcBh4jN7A==
+  dependencies:
+    debug "^3.1.0"
+
+ref-struct@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/ref-struct/-/ref-struct-1.1.0.tgz#5d5ee65ad41cefc3a5c5feb40587261e479edc13"
   integrity sha1-XV7mWtQc78Olxf60BYcmHkee3BM=
@@ -3170,7 +3187,7 @@ ref-struct@1, ref-struct@^1.1.0:
     debug "2"
     ref "1"
 
-ref@1, ref@^1.3.3:
+ref@1:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/ref/-/ref-1.3.5.tgz#0e33f080cdb94a3d95312b2b3b1fd0f82044ca0f"
   integrity sha512-2cBCniTtxcGUjDpvFfVpw323a83/0RLSGJJY5l5lcomZWhYpU2cuLdsvYqMixvsdLJ9+sTdzEkju8J8ZHDM2nA==