diff --git a/package.json b/package.json
index e9c353d..8fe6f1f 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "power-assert": "^1.6.1",
     "prettier": "^2.2.1",
     "rollup": "^2.40.0",
-    "rollup-plugin-terser": "^7.0.0",
+    "@rollup/plugin-terser": "^0.1.0",
     "typescript": "^4.2.3"
   },
   "engines": {
diff --git a/yarn.lock b/yarn.lock
index 2a48714..3958b8a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -16,13 +16,6 @@
   dependencies:
     "@babel/highlight" "^7.8.3"
 
-"@babel/code-frame@^7.10.4":
-  version "7.10.4"
-  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.10.4.tgz#168da1a36e90da68ae8d49c0f1b48c7c6249213a"
-  integrity sha512-vG6SvB6oYEhvgisZNFRmRCUkLz11c7rp+tbNTynGqc6mS1d5ATd/sGyV6W0KZZnXRKMTzZDRgQT3Ou9jhpAfUg==
-  dependencies:
-    "@babel/highlight" "^7.10.4"
-
 "@babel/code-frame@^7.12.13":
   version "7.12.13"
   resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.12.13.tgz#dcfc826beef65e75c50e21d3837d7d95798dd658"
@@ -907,6 +900,40 @@
     minimatch "^3.0.4"
     strip-json-comments "^3.1.1"
 
+"@jridgewell/gen-mapping@^0.3.5":
+  version "0.3.13"
+  resolved "https://registry.yarnpkg.com/@jridgewell/gen-mapping/-/gen-mapping-0.3.13.tgz#6342a19f44347518c93e43b1ac69deb3c4656a1f"
+  integrity sha512-2kkt/7niJ6MgEPxF0bYdQ6etZaA+fQvDcLKckhy1yIQOzaoKjBBjSj63/aLVjYE3qhRt5dvM+uUyfCg6UKCBbA==
+  dependencies:
+    "@jridgewell/sourcemap-codec" "^1.5.0"
+    "@jridgewell/trace-mapping" "^0.3.24"
+
+"@jridgewell/resolve-uri@^3.1.0":
+  version "3.1.2"
+  resolved "https://registry.yarnpkg.com/@jridgewell/resolve-uri/-/resolve-uri-3.1.2.tgz#7a0ee601f60f99a20c7c7c5ff0c80388c1189bd6"
+  integrity sha512-bRISgCIjP20/tbWSPWMEi54QVPRZExkuD9lJL+UIxUKtwVJA8wW1Trb1jMs1RFXo1CBTNZ/5hpC9QvmKWdopKw==
+
+"@jridgewell/source-map@^0.3.3":
+  version "0.3.11"
+  resolved "https://registry.yarnpkg.com/@jridgewell/source-map/-/source-map-0.3.11.tgz#b21835cbd36db656b857c2ad02ebd413cc13a9ba"
+  integrity sha512-ZMp1V8ZFcPG5dIWnQLr3NSI1MiCU7UETdS/A0G8V/XWHvJv3ZsFqutJn1Y5RPmAPX6F3BiE397OqveU/9NCuIA==
+  dependencies:
+    "@jridgewell/gen-mapping" "^0.3.5"
+    "@jridgewell/trace-mapping" "^0.3.25"
+
+"@jridgewell/sourcemap-codec@^1.4.14", "@jridgewell/sourcemap-codec@^1.5.0":
+  version "1.5.5"
+  resolved "https://registry.yarnpkg.com/@jridgewell/sourcemap-codec/-/sourcemap-codec-1.5.5.tgz#6912b00d2c631c0d15ce1a7ab57cd657f2a8f8ba"
+  integrity sha512-cYQ9310grqxueWbl+WuIUIaiUaDcj7WOq5fVhEljNVgRfOUhY9fy2zTvfoqWsnebh8Sl70VScFbICvJnLKB0Og==
+
+"@jridgewell/trace-mapping@^0.3.24", "@jridgewell/trace-mapping@^0.3.25":
+  version "0.3.31"
+  resolved "https://registry.yarnpkg.com/@jridgewell/trace-mapping/-/trace-mapping-0.3.31.tgz#db15d6781c931f3a251a3dac39501c98a6082fd0"
+  integrity sha512-zzNR+SdQSDJzc8joaeP8QQoCQr8NuYx2dIIytl1QeBEZHJ9uW6hebsrYgbz8hJwUQao3TWCMtmfV8Nu1twOLAw==
+  dependencies:
+    "@jridgewell/resolve-uri" "^3.1.0"
+    "@jridgewell/sourcemap-codec" "^1.4.14"
+
 "@mdn/browser-compat-data@^2.0.5":
   version "2.0.7"
   resolved "https://registry.yarnpkg.com/@mdn/browser-compat-data/-/browser-compat-data-2.0.7.tgz#72ec37b9c1e00ce0b4e0309d753be18e2da12ee3"
@@ -960,6 +987,13 @@
     is-module "^1.0.0"
     resolve "^1.19.0"
 
+"@rollup/plugin-terser@^0.1.0":
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/@rollup/plugin-terser/-/plugin-terser-0.1.0.tgz#7530c0f11667637419d71820461646c418526041"
+  integrity sha512-N2KK+qUfHX2hBzVzM41UWGLrEmcjVC37spC8R3c9mt3oEDFKh3N2e12/lLp9aVSt86veR0TQiCNQXrm8C6aiUQ==
+  dependencies:
+    terser "^5.15.1"
+
 "@rollup/plugin-typescript@^8.2.0":
   version "8.2.0"
   resolved "https://registry.yarnpkg.com/@rollup/plugin-typescript/-/plugin-typescript-8.2.0.tgz#3e2059cbcae916785d8d7bf07816210c829f817c"
@@ -1254,6 +1288,11 @@ acorn@^7.4.0:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-7.4.1.tgz#feaed255973d2e77555b83dbc08851a6c63520fa"
   integrity sha512-nQyp0o1/mNdbTO1PO6kHkwSrmgZ0MT/jCCpNiwbUjGoRN4dlBhqJtoQuCnEOKzgTVwg0ZWiCoQy6SxMebQVh8A==
 
+acorn@^8.15.0:
+  version "8.15.0"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-8.15.0.tgz#a360898bc415edaac46c8241f6383975b930b816"
+  integrity sha512-NZyJarBfL7nWwIq+FDL6Zp/yHEhePMNnnJ0y3qfieCrmNvYct8uvtiV41UvlSe6apAfk0fY1FbWx+NwfmpvtTg==
+
 aggregate-error@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/aggregate-error/-/aggregate-error-3.0.1.tgz#db2fe7246e536f40d9b5442a39e117d7dd6a24e0"
@@ -3000,15 +3039,6 @@ iterate-value@^1.0.0:
     es-get-iterator "^1.0.2"
     iterate-iterator "^1.0.1"
 
-jest-worker@^26.2.1:
-  version "26.2.1"
-  resolved "https://registry.yarnpkg.com/jest-worker/-/jest-worker-26.2.1.tgz#5d630ab93f666b53f911615bc13e662b382bd513"
-  integrity sha512-+XcGMMJDTeEGncRb5M5Zq9P7K4sQ1sirhjdOxsN1462h6lFo9w59bl2LVQmdGEEeU3m+maZCkS2Tcc9SfCHO4A==
-  dependencies:
-    "@types/node" "*"
-    merge-stream "^2.0.0"
-    supports-color "^7.0.0"
-
 js-tokens@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
@@ -4032,16 +4062,6 @@ rimraf@^3.0.0, rimraf@^3.0.2:
   dependencies:
     glob "^7.1.3"
 
-rollup-plugin-terser@^7.0.0:
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/rollup-plugin-terser/-/rollup-plugin-terser-7.0.0.tgz#26b38ada4f0b351cd7cd872ca04c0f8532d4864f"
-  integrity sha512-p/N3lLiFusCjYTLfVkoaiRTOGr5AESEaljMPH12MhOtoMkmTBhIAfuadrcWy4am1U0vU4WTxO9fi0K09O4CboQ==
-  dependencies:
-    "@babel/code-frame" "^7.10.4"
-    jest-worker "^26.2.1"
-    serialize-javascript "^4.0.0"
-    terser "^5.0.0"
-
 rollup@^2.40.0:
   version "2.40.0"
   resolved "https://registry.yarnpkg.com/rollup/-/rollup-2.40.0.tgz#efc218eaede7ab590954df50f96195188999c304"
@@ -4115,7 +4135,7 @@ semver@^7.3.2:
   dependencies:
     lru-cache "^6.0.0"
 
-serialize-javascript@4.0.0, serialize-javascript@^4.0.0:
+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==
@@ -4218,7 +4238,7 @@ socket.io@^3.1.0:
     socket.io-adapter "~2.1.0"
     socket.io-parser "~4.0.3"
 
-source-map-support@^0.5.12, source-map-support@^0.5.17, source-map-support@~0.5.12:
+source-map-support@^0.5.12, source-map-support@^0.5.17:
   version "0.5.19"
   resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.19.tgz#a98b62f86dcaf4f67399648c085291ab9e8fed61"
   integrity sha512-Wonm7zOCIJzBGQdB+thsPar0kYuCIzYvxZwlBa87yi/Mdjv7Tip2cyVbLj5o0cFPN4EVkuTwb3GDDyUx2DGnGw==
@@ -4226,6 +4246,14 @@ source-map-support@^0.5.12, source-map-support@^0.5.17, source-map-support@~0.5.
     buffer-from "^1.0.0"
     source-map "^0.6.0"
 
+source-map-support@~0.5.20:
+  version "0.5.21"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.21.tgz#04fe7c7f9e1ed2d662233c28cb2b35b9f63f6e4f"
+  integrity sha512-uBHU3L3czsIyYXKX88fdrGovxdSCoTGDRZ6SYXtSRxLZUzHg5P/66Ht6uoUlHu9EZod+inXhKo3qQgwXUT/y1w==
+  dependencies:
+    buffer-from "^1.0.0"
+    source-map "^0.6.0"
+
 source-map@^0.1.34:
   version "0.1.43"
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.1.43.tgz#c24bc146ca517c1471f5dacbe2571b2b7f9e3346"
@@ -4430,7 +4458,7 @@ strip-json-comments@^3.1.1:
   resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-3.1.1.tgz#31f1281b3832630434831c310c01cccda8cbe006"
   integrity sha512-6fPc+R4ihwqP6N/aIv2f1gMH8lOVtWQHoqC4yK6oSDVVocumAsfCqjkXnqiYMhmMwS/mEHLp7Vehlt3ql6lEig==
 
-supports-color@7.1.0, supports-color@^7.0.0, supports-color@^7.1.0:
+supports-color@7.1.0, supports-color@^7.1.0:
   version "7.1.0"
   resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-7.1.0.tgz#68e32591df73e25ad1c4b49108a2ec507962bfd1"
   integrity sha512-oRSIpR8pxT1Wr2FquTNnGet79b3BWljqOuoW/h4oBhxJ/HUbX5nX6JSruTkvXDCFMwDPvsaTTbvMLKZWSy0R5g==
@@ -4454,14 +4482,15 @@ table@^6.0.4:
     slice-ansi "^4.0.0"
     string-width "^4.2.0"
 
-terser@^5.0.0:
-  version "5.0.0"
-  resolved "https://registry.yarnpkg.com/terser/-/terser-5.0.0.tgz#269640e4e92f15d628de1e5f01c4c61e1ba3d765"
-  integrity sha512-olH2DwGINoSuEpSGd+BsPuAQaA3OrHnHnFL/rDB2TVNc3srUbz/rq/j2BlF4zDXI+JqAvGr86bIm1R2cJgZ3FA==
+terser@^5.15.1:
+  version "5.44.0"
+  resolved "https://registry.yarnpkg.com/terser/-/terser-5.44.0.tgz#ebefb8e5b8579d93111bfdfc39d2cf63879f4a82"
+  integrity sha512-nIVck8DK+GM/0Frwd+nIhZ84pR/BX7rmXMfYwyg+Sri5oGVE99/E3KvXqpC2xHFxyqXyGHTKBSioxxplrO4I4w==
   dependencies:
+    "@jridgewell/source-map" "^0.3.3"
+    acorn "^8.15.0"
     commander "^2.20.0"
-    source-map "~0.6.1"
-    source-map-support "~0.5.12"
+    source-map-support "~0.5.20"
 
 text-table@^0.2.0:
   version "0.2.0"