diff --git a/yarn.lock b/yarn.lock
index 93a5f9a..dea8396 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,11 +2,6 @@
 # yarn lockfile v1
 
 
-"@tensorflow/tfjs-converter@1.1.2":
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/@tensorflow/tfjs-converter/-/tfjs-converter-1.1.2.tgz#2400ac77b30f973f1fcb26c912b28271f7f4d605"
-  integrity sha512-KuLIIJYzmRmtJXcjBH3inQVhTHbABj2TNAVS3ss12hzDiEE/RiRb/LZKo8XV2WczuZXTq+gxep84PWXSH/HQXA==
-
 "@tensorflow/tfjs-converter@1.2.1":
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/@tensorflow/tfjs-converter/-/tfjs-converter-1.2.1.tgz#996e9e2e7d0f03717e7fc1211176ee43049b38ac"
@@ -22,19 +17,6 @@
     "@types/webgl2" "0.0.4"
     seedrandom "2.4.3"
 
-"@tensorflow/tfjs-core@1.1.2":
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/@tensorflow/tfjs-core/-/tfjs-core-1.1.2.tgz#efb8b3688fbff353e51d41a3d832dde8c1bc321d"
-  integrity sha512-xCAUIAh14OFnHt+IQUUZIH/P/jH/EWvewL0Ty6q6USUx4YZ+HvKwNw1G7h/gKki4A31BJ0avD04ylBKc75laGg==
-  dependencies:
-    "@types/seedrandom" "2.4.27"
-    "@types/webgl-ext" "0.0.30"
-    "@types/webgl2" "0.0.4"
-    node-fetch "~2.1.2"
-    seedrandom "2.4.3"
-  optionalDependencies:
-    rollup-plugin-visualizer "~1.1.1"
-
 "@tensorflow/tfjs-core@1.2.1":
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/@tensorflow/tfjs-core/-/tfjs-core-1.2.1.tgz#0ff54aa7fd412b8c17e39f6ec5a97bf032e8f530"
@@ -48,14 +30,6 @@
   optionalDependencies:
     rollup-plugin-visualizer "~1.1.1"
 
-"@tensorflow/tfjs-data@1.1.2":
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/@tensorflow/tfjs-data/-/tfjs-data-1.1.2.tgz#f37809aa89946a834f3566bd090db852f2c4244e"
-  integrity sha512-K30QdocXd5zn3rpGbRTC4sO42q8tK1SGqDHE2IEkvYzcg0PAU3cEMODGTLjKt0z1Lfy1JKgs0FPcvazqmxpjGA==
-  dependencies:
-    "@types/node-fetch" "^2.1.2"
-    node-fetch "~2.1.2"
-
 "@tensorflow/tfjs-data@1.2.1":
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/@tensorflow/tfjs-data/-/tfjs-data-1.2.1.tgz#c0ffdfed0a6c18f17205ad1d55ff1433a0f973c4"
@@ -64,29 +38,11 @@
     "@types/node-fetch" "^2.1.2"
     node-fetch "~2.1.2"
 
-"@tensorflow/tfjs-layers@1.1.2":
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/@tensorflow/tfjs-layers/-/tfjs-layers-1.1.2.tgz#29393221446a877962b71084305597295504801e"
-  integrity sha512-iP9mJz/79nK+sXBWdxQkeNIqn9p+O/x3g15ntIXpEaLXOGjQEE12iKtLCWgG3qH+FltOVt5hTbAXkj/yDym1Xg==
-
 "@tensorflow/tfjs-layers@1.2.1":
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/@tensorflow/tfjs-layers/-/tfjs-layers-1.2.1.tgz#78f28e90ee95ec206e69d5e2432b677e28c70c45"
   integrity sha512-h3uFYRHzEGqtyzC4PLHcXGn2tbPcozk9H6yMEtdI1yLJZXBKTh4Yjs9B/yN9HRxp31pc2hCFrqU7ViNYAg/vYw==
 
-"@tensorflow/tfjs-node-gpu@^1.1.2":
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/@tensorflow/tfjs-node-gpu/-/tfjs-node-gpu-1.1.2.tgz#c532ab9ca84745ffe27af8b7cef40d329eace221"
-  integrity sha512-OvLCngIfqdPuYqGrUDnwTLnolOVrS7Zr5ufHWBA+gxesNFHXgfOm0nBFPhXHtfIaaYdMcM8Gsos4frXzqRzsiQ==
-  dependencies:
-    "@tensorflow/tfjs" "~1.1.2"
-    adm-zip "^0.4.11"
-    bindings "~1.3.0"
-    https-proxy-agent "^2.2.1"
-    progress "^2.0.0"
-    rimraf "^2.6.2"
-    tar "^4.4.6"
-
 "@tensorflow/tfjs-node@^1.2.1":
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/@tensorflow/tfjs-node/-/tfjs-node-1.2.1.tgz#04f422a7f2d45f68c2b2e3ac6e2ae5b5373c16d1"
@@ -100,16 +56,6 @@
     rimraf "^2.6.2"
     tar "^4.4.6"
 
-"@tensorflow/tfjs@~1.1.2":
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/@tensorflow/tfjs/-/tfjs-1.1.2.tgz#9a1c2bbc4d82f9d18f250ab4a4d7c8ad43e2d432"
-  integrity sha512-b+ekLNEfMzaBszti6uGcS3pJoPNQuv1hxKEoY9Q3ix52fFJzI86nSvM1lwOcvUZy6DjPFDoyB8MO+dJHqecG5w==
-  dependencies:
-    "@tensorflow/tfjs-converter" "1.1.2"
-    "@tensorflow/tfjs-core" "1.1.2"
-    "@tensorflow/tfjs-data" "1.1.2"
-    "@tensorflow/tfjs-layers" "1.1.2"
-
 "@tensorflow/tfjs@~1.2.1":
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/@tensorflow/tfjs/-/tfjs-1.2.1.tgz#1237fab53005d659ee082974428061d78493341f"
@@ -368,9 +314,9 @@ inherits@2, inherits@~2.0.3:
   integrity sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==
 
 ini@~1.3.0:
-  version "1.3.5"
-  resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"
-  integrity sha512-RZY5huIKCMRWDUqZlEi72f/lmXKMvuszcMBduliQ3nnWbx9X/ZBQO7DijMEYS9EhHBb2qacRUMtC7svLwe0lcw==
+  version "1.3.7"
+  resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.7.tgz#a09363e1911972ea16d7a8851005d84cf09a9a84"
+  integrity sha512-iKpRpXP+CrP2jyrxvg1kMUpXDyRUFDWurxbnVT1vQPx+Wz9uCYsMIqYuSBLV+PAaZG/d7kRLKRFc9oDMsH+mFQ==
 
 is-fullwidth-code-point@^1.0.0:
   version "1.0.0"