diff --git a/package.json b/package.json
index 90757dd28..6be12c9e0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "eosjs",
-  "version": "21.0.2",
+  "version": "21.0.3",
   "description": "Talk to eos API",
   "main": "dist/index.js",
   "scripts": {
@@ -41,7 +41,7 @@
     "eslint": "^6.8.0",
     "jest": "^26.3.0",
     "jest-fetch-mock": "^3.0.3",
-    "ts-jest": "^26.1.4",
+    "ts-jest": "^26.2.0",
     "ts-loader": "^7.0.5",
     "typescript": "^3.9.7",
     "webpack": "^4.44.1",
diff --git a/yarn.lock b/yarn.lock
index 8c42bf6ae..77d368730 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -643,7 +643,7 @@
   dependencies:
     "@types/istanbul-lib-report" "*"
 
-"@types/jest@^26.0.9":
+"@types/jest@26.x", "@types/jest@^26.0.9":
   version "26.0.9"
   resolved "https://registry.yarnpkg.com/@types/jest/-/jest-26.0.9.tgz#0543b57da5f0cd949c5f423a00c56c492289c989"
   integrity sha512-k4qFfJ5AUKrWok5KYXp2EPm89b0P/KZpl7Vg4XuOTVVQEhLDBDBU3iBFrjjdgd8fLw96aAtmnwhXHl63bWeBQQ==
@@ -1064,14 +1064,15 @@ array-unique@^0.3.2:
   resolved "https://registry.yarnpkg.com/array-unique/-/array-unique-0.3.2.tgz#a894b75d4bc4f6cd679ef3244a9fd8f46ae2d428"
   integrity sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg=
 
-asn1.js@^4.0.0:
-  version "4.10.1"
-  resolved "https://registry.yarnpkg.com/asn1.js/-/asn1.js-4.10.1.tgz#b9c2bf5805f1e64aadeed6df3a2bfafb5a73f5a0"
-  integrity sha512-p32cOF5q0Zqs9uBiONKYLm6BClCoBCM5O9JfeUSlnQLBTxYdTK+pW+nXflm8UkKd2UYlEbYz5qEi0JuZR9ckSw==
+asn1.js@^5.2.0:
+  version "5.4.1"
+  resolved "https://registry.yarnpkg.com/asn1.js/-/asn1.js-5.4.1.tgz#11a980b84ebb91781ce35b0fdc2ee294e3783f07"
+  integrity sha512-+I//4cYPccV8LdmBLiX8CYvf9Sp3vQsrqu2QNXRcrbiWvcx/UdlFiqUJJzxRQxgsZmvhXhn4cSKeSmoFjVdupA==
   dependencies:
     bn.js "^4.0.0"
     inherits "^2.0.1"
     minimalistic-assert "^1.0.0"
+    safer-buffer "^2.1.0"
 
 asn1@~0.2.3:
   version "0.2.4"
@@ -1129,9 +1130,9 @@ aws-sign2@~0.7.0:
   integrity sha1-tG6JCTSpWR8tL2+G1+ap8bP+dqg=
 
 aws4@^1.8.0:
-  version "1.10.0"
-  resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.10.0.tgz#a17b3a8ea811060e74d47d306122400ad4497ae2"
-  integrity sha512-3YDiu347mtVtjpyV3u5kVqQLP242c06zwDOgpeRnybmXlYYsLbtTrUBUm8i8srONt+FWobl5aibnU1030PeeuA==
+  version "1.10.1"
+  resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.10.1.tgz#e1e82e4f3e999e2cfd61b161280d16a111f86428"
+  integrity sha512-zg7Hz2k5lI8kb7U32998pRRFin7zJlkfezGJjUc2heaD4Pw2wObakCDVzkKztTm/Ln7eiVvYsjqak0Ed4LkMDA==
 
 babel-eslint@^10.0.3:
   version "10.1.0"
@@ -4673,13 +4674,12 @@ parent-module@^1.0.0:
     callsites "^3.0.0"
 
 parse-asn1@^5.0.0, parse-asn1@^5.1.5:
-  version "5.1.5"
-  resolved "https://registry.yarnpkg.com/parse-asn1/-/parse-asn1-5.1.5.tgz#003271343da58dc94cace494faef3d2147ecea0e"
-  integrity sha512-jkMYn1dcJqF6d5CpU689bq7w/b5ALS9ROVSpQDPrZsqqesUJii9qutvoT5ltGedNXMO2e16YUWIghG9KxaViTQ==
+  version "5.1.6"
+  resolved "https://registry.yarnpkg.com/parse-asn1/-/parse-asn1-5.1.6.tgz#385080a3ec13cb62a62d39409cb3e88844cdaed4"
+  integrity sha512-RnZRo1EPU6JBnra2vGHj0yhp6ebyjBZpmUCLHWiFhxlzvBCCpAuZ7elsBp1PVAbQN0/04VD/19rfzlBSwLstMw==
   dependencies:
-    asn1.js "^4.0.0"
+    asn1.js "^5.2.0"
     browserify-aes "^1.0.0"
-    create-hash "^1.1.0"
     evp_bytestokey "^1.0.0"
     pbkdf2 "^3.0.3"
     safe-buffer "^5.1.1"
@@ -5341,10 +5341,10 @@ semver@^6.0.0, semver@^6.1.2, semver@^6.3.0:
   resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.0.tgz#ee0a64c8af5e8ceea67687b133761e1becbd1d3d"
   integrity sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==
 
-serialize-javascript@^3.1.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-3.1.0.tgz#8bf3a9170712664ef2561b44b691eafe399214ea"
-  integrity sha512-JIJT1DGiWmIKhzRsG91aS6Ze4sFUrYbltlkg2onR5OrnNM02Kl/hnY/T4FN2omvyeBbQmMJv+K4cPOpGzOTFBg==
+serialize-javascript@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/serialize-javascript/-/serialize-javascript-4.0.0.tgz#b525e1238489a5ecfc42afacc3fe99e666f4b1aa"
+  integrity sha512-GaNA54380uFefWghODBWEGisLZFj00nS5ACs6yHa9nLqlLpVLO8ChDGeKRjZnV4Nh4n0Qi7nhYZD/9fCPzEqkw==
   dependencies:
     randombytes "^2.1.0"
 
@@ -5793,15 +5793,15 @@ terminal-link@^2.0.0:
     supports-hyperlinks "^2.0.0"
 
 terser-webpack-plugin@^1.4.3:
-  version "1.4.4"
-  resolved "https://registry.yarnpkg.com/terser-webpack-plugin/-/terser-webpack-plugin-1.4.4.tgz#2c63544347324baafa9a56baaddf1634c8abfc2f"
-  integrity sha512-U4mACBHIegmfoEe5fdongHESNJWqsGU+W0S/9+BmYGVQDw1+c2Ow05TpMhxjPK1sRb7cuYq1BPl1e5YHJMTCqA==
+  version "1.4.5"
+  resolved "https://registry.yarnpkg.com/terser-webpack-plugin/-/terser-webpack-plugin-1.4.5.tgz#a217aefaea330e734ffacb6120ec1fa312d6040b"
+  integrity sha512-04Rfe496lN8EYruwi6oPQkG0vo8C+HT49X687FZnpPF0qMAIHONI6HEXYPKDOE8e5HjXTyKfqRd/agHtH0kOtw==
   dependencies:
     cacache "^12.0.2"
     find-cache-dir "^2.1.0"
     is-wsl "^1.1.0"
     schema-utils "^1.0.0"
-    serialize-javascript "^3.1.0"
+    serialize-javascript "^4.0.0"
     source-map "^0.6.1"
     terser "^4.1.2"
     webpack-sources "^1.4.0"
@@ -5945,11 +5945,12 @@ tr46@^2.0.2:
   dependencies:
     punycode "^2.1.1"
 
-ts-jest@^26.1.4:
-  version "26.1.4"
-  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-26.1.4.tgz#87d41a96016a8efe4b8cc14501d3785459af6fa6"
-  integrity sha512-Nd7diUX6NZWfWq6FYyvcIPR/c7GbEF75fH1R6coOp3fbNzbRJBZZAn0ueVS0r8r9ral1VcrpneAFAwB3TsVS1Q==
+ts-jest@^26.2.0:
+  version "26.2.0"
+  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-26.2.0.tgz#7ec22faceb05ee1467fdb5265d1b33c27441f163"
+  integrity sha512-9+y2qwzXdAImgLSYLXAb/Rhq9+K4rbt0417b8ai987V60g2uoNWBBmMkYgutI7D8Zhu+IbCSHbBtrHxB9d7xyA==
   dependencies:
+    "@types/jest" "26.x"
     bs-logger "0.x"
     buffer-from "1.x"
     fast-json-stable-stringify "2.x"