diff --git a/package.json b/package.json
index b4669c0..7bd2b02 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "@types/babel__core": "^7.1.3",
     "@types/jest": "^25.1.2",
     "@types/node": "^12.12.26",
-    "babel-plugin-tester": "^8.0.1",
+    "babel-plugin-tester": "^10.1.0",
     "jest": "^25.1.0",
     "rimraf": "^3.0.2",
     "ts-jest": "^25.2.0",
diff --git a/yarn.lock b/yarn.lock
index 5bacd95..c273a21 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -634,6 +634,14 @@
   dependencies:
     "@types/babel__core" "*"
 
+"@types/babel-plugin-tester@^9.0.0":
+  version "9.0.3"
+  resolved "https://registry.yarnpkg.com/@types/babel-plugin-tester/-/babel-plugin-tester-9.0.3.tgz#cc6ad6f18a0199441313fce48d09b45a05a407f8"
+  integrity sha512-qw+Km6cLPF50NtFII2MR/MNi7UA3ojaO9hxvktJv9txvsp24nWXG2m8Ij1Ijf93j+sY/9oVpFY+7Z9BI4ZS8qA==
+  dependencies:
+    "@types/babel__core" "*"
+    "@types/prettier" "*"
+
 "@types/babel__core@*", "@types/babel__core@^7.1.0":
   version "7.1.3"
   resolved "https://registry.yarnpkg.com/@types/babel__core/-/babel__core-7.1.3.tgz#e441ea7df63cd080dfcd02ab199e6d16a735fc30"
@@ -721,6 +729,11 @@
   resolved "https://registry.yarnpkg.com/@types/parse-json/-/parse-json-4.0.0.tgz#2f8bb441434d163b35fb8ffdccd7138927ffb8c0"
   integrity sha512-//oorEZjL6sbPcKUaCdIGlIUeH26mgzimjBB77G6XRgnDl/L5wOnpyBGRe/Mmf5CVW3PwEBE1NjiMZ/ssFh4wA==
 
+"@types/prettier@*":
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/@types/prettier/-/prettier-2.3.0.tgz#2e8332cc7363f887d32ec5496b207d26ba8052bb"
+  integrity sha512-hkc1DATxFLQo4VxPDpMH1gCkPpBbpOoJ/4nhuXw4n63/0R6bCpQECj4+K226UJ4JO/eJQz+1mC2I7JsWanAdQw==
+
 "@types/stack-utils@^1.0.1":
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/@types/stack-utils/-/stack-utils-1.0.1.tgz#0a851d3bd96498fa25c33ab7278ed3bd65f06c3e"
@@ -972,13 +985,14 @@ babel-plugin-macros@^3.0.0:
     cosmiconfig "^7.0.0"
     resolve "^1.19.0"
 
-babel-plugin-tester@^8.0.1:
-  version "8.0.1"
-  resolved "https://registry.yarnpkg.com/babel-plugin-tester/-/babel-plugin-tester-8.0.1.tgz#6cffa9b9d508a567139339afc74c97c64b62f131"
-  integrity sha512-5PN7FR1oxbTiA7JUdInT+vFkgu6ckYL5moRzWf5T7hAq+QX5cbcHpoXNHu1x7SQHCEZwYMhN1HzZoqeolNaO2g==
+babel-plugin-tester@^10.1.0:
+  version "10.1.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-tester/-/babel-plugin-tester-10.1.0.tgz#e099ee1d8dec538439c427a7d12aad132885757b"
+  integrity sha512-4P2tNaM/Mtg6ytA9YAqmgONnMYqWvdbGDuwRTpIIC9yFZGQrEHoyvDPCx+X1QALAufVb5DKieOPGj5dffiEiNg==
   dependencies:
+    "@types/babel-plugin-tester" "^9.0.0"
     lodash.mergewith "^4.6.2"
-    prettier "^1.19.1"
+    prettier "^2.0.1"
     strip-indent "^3.0.0"
 
 babel-preset-jest@^25.1.0:
@@ -2788,12 +2802,7 @@ lodash.sortby@^4.7.0:
   resolved "https://registry.yarnpkg.com/lodash.sortby/-/lodash.sortby-4.7.0.tgz#edd14c824e2cc9c1e0b0a1b42bb5210516a42438"
   integrity sha1-7dFMgk4sycHgsKG0K7UhBRakJDg=
 
-lodash@^4.17.13, lodash@^4.17.15:
-  version "4.17.20"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
-  integrity sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==
-
-lodash@^4.17.19:
+lodash@^4.17.13, lodash@^4.17.15, lodash@^4.17.19:
   version "4.17.20"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
   integrity sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==
@@ -3343,10 +3352,10 @@ prelude-ls@~1.1.2:
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
   integrity sha1-IZMqVJ9eUv/ZqCf1cOBL5iqX2lQ=
 
-prettier@^1.19.1:
-  version "1.19.1"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.19.1.tgz#f7d7f5ff8a9cd872a7be4ca142095956a60797cb"
-  integrity sha512-s7PoyDv/II1ObgQunCbB9PdLmUcBZcnWOcxDh7O0N/UwDEsHyqkW+Qh28jW+mVuCdx7gLB0BotYI1Y6uI9iyew==
+prettier@^2.0.1:
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.3.1.tgz#76903c3f8c4449bc9ac597acefa24dc5ad4cbea6"
+  integrity sha512-p+vNbgpLjif/+D+DwAZAbndtRrR0md0MwfmOVN9N+2RgyACMT+7tfaRnT+WDPkqnuVwleyuBIG2XBxKDme3hPA==
 
 pretty-format@^25.1.0:
   version "25.1.0"