diff --git a/package.json b/package.json
index 302b3ca4..12a7c7cc 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "@salesforce/dev-scripts": "^2.0.3",
     "@salesforce/plugin-command-reference": "^1.6.18",
     "@salesforce/prettier-config": "^0.0.3",
-    "@salesforce/ts-sinon": "^1.4.19",
+    "@salesforce/ts-sinon": "^1.4.20",
     "@types/fs-extra": "^9.0.13",
     "@types/node-fetch": "^3.0.3",
     "@types/nodegit": "^0.28.7",
diff --git a/yarn.lock b/yarn.lock
index 195f26dd..a3e8bed1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1424,14 +1424,14 @@
     yeoman-environment "^3.9.1"
     yeoman-generator "^5.6.1"
 
-"@salesforce/ts-sinon@^1.4.19":
-  version "1.4.19"
-  resolved "https://registry.yarnpkg.com/@salesforce/ts-sinon/-/ts-sinon-1.4.19.tgz#64157b6c8cf4a3c637867e2ddd90c2d058c334f7"
-  integrity sha512-vopxKrI6QD0OCtPlge1eGGHFWLkoDee7KaB/dpGeRwioeNfCVJ8ikELN0hv0zq9Ys6gUYWYcdpxzTP1upslCJA==
+"@salesforce/ts-sinon@^1.4.20":
+  version "1.4.20"
+  resolved "https://registry.yarnpkg.com/@salesforce/ts-sinon/-/ts-sinon-1.4.20.tgz#8afafd812325619a2d6b323deb7ad058a30235c0"
+  integrity sha512-LNAPWmiXMsICH6j7WtLaAue+FP0qCdzK0Z297TQahlpxZdesph87PTZfw9keQx3j8H7RjTT/n56v97M4L+uuUw==
   dependencies:
     "@salesforce/ts-types" "^2.0.9"
     sinon "^5.1.1"
-    tslib "^2.6.1"
+    tslib "^2.6.3"
 
 "@salesforce/ts-types@^1.5.20", "@salesforce/ts-types@^1.7.1", "@salesforce/ts-types@^1.7.2", "@salesforce/ts-types@^1.7.3":
   version "1.7.3"
@@ -8778,10 +8778,10 @@ tslib@^1.8.1, tslib@^1.9.0, tslib@^1.9.3:
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.14.1.tgz#cf2d38bdc34a134bcaf1091c41f6619e2f672d00"
   integrity sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==
 
-tslib@^2, tslib@^2.0.0, tslib@^2.0.3, tslib@^2.1.0, tslib@^2.3.1, tslib@^2.4.1, tslib@^2.5.0, tslib@^2.6.1, tslib@^2.6.2:
-  version "2.6.2"
-  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.6.2.tgz#703ac29425e7b37cd6fd456e92404d46d1f3e4ae"
-  integrity sha512-AEYxH93jGFPn/a2iVAwW87VuUIkR1FVUKB77NwMF7nBTDkDrrT/Hpt/IrCJ0QXhW27jTBDcf5ZY7w6RiqTMw2Q==
+tslib@^2, tslib@^2.0.0, tslib@^2.0.3, tslib@^2.1.0, tslib@^2.3.1, tslib@^2.4.1, tslib@^2.5.0, tslib@^2.6.2, tslib@^2.6.3:
+  version "2.6.3"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.6.3.tgz#0438f810ad7a9edcde7a241c3d80db693c8cbfe0"
+  integrity sha512-xNvxJEOUiWPGhUuUdQgAJPKOOJfGnIyKySOc09XkKsgdUV/3E2zvwZYdejjmRgPCgcym1juLH3226yA7sEFJKQ==
 
 tsutils@^3.21.0:
   version "3.21.0"