diff --git a/package.json b/package.json
index c8ce625..1c12a27 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "relay-compiler-language-typescript": "^13.0.1",
     "relay-config": "^10.0.1",
     "standard-version": "^9.0.0",
-    "ts-jest": "26.3.0",
+    "ts-jest": "26.5.1",
     "tslint": "^6.1.3",
     "tslint-plugin-prettier": "^2.3.0",
     "typescript": "^4.0.3"
diff --git a/packages/vscode-apollo-relay/package.json b/packages/vscode-apollo-relay/package.json
index db8f3a6..a2f454c 100644
--- a/packages/vscode-apollo-relay/package.json
+++ b/packages/vscode-apollo-relay/package.json
@@ -43,7 +43,7 @@
     "relay-compiler-language-typescript": "^13.0.1",
     "relay-config": "^10.0.1",
     "standard-version": "^9.0.0",
-    "ts-jest": "26.3.0",
+    "ts-jest": "26.5.1",
     "tslint": "^6.1.3",
     "tslint-plugin-prettier": "^2.3.0",
     "typescript": "^4.0.3"
diff --git a/yarn.lock b/yarn.lock
index fc9e574..bc478b3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1069,6 +1069,17 @@
     "@types/yargs" "^15.0.0"
     chalk "^4.0.0"
 
+"@jest/types@^26.6.2":
+  version "26.6.2"
+  resolved "https://registry.yarnpkg.com/@jest/types/-/types-26.6.2.tgz#bef5a532030e1d88a2f5a6d933f84e97226ed48e"
+  integrity sha512-fC6QCp7Sc5sX6g8Tvbmj4XUTbyrik0akgRy03yjXbQaBWWNWGE7SGtJk98m0N8nzegD/7SggrUlivxo5ax4KWQ==
+  dependencies:
+    "@types/istanbul-lib-coverage" "^2.0.0"
+    "@types/istanbul-reports" "^3.0.0"
+    "@types/node" "*"
+    "@types/yargs" "^15.0.0"
+    chalk "^4.0.0"
+
 "@manypkg/find-root@^1.1.0":
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/@manypkg/find-root/-/find-root-1.1.0.tgz#a62d8ed1cd7e7d4c11d9d52a8397460b5d4ad29f"
@@ -4209,7 +4220,19 @@ jest-snapshot@^26.5.2:
     pretty-format "^26.5.2"
     semver "^7.3.2"
 
-jest-util@26.x, jest-util@^26.5.2:
+jest-util@^26.1.0:
+  version "26.6.2"
+  resolved "https://registry.yarnpkg.com/jest-util/-/jest-util-26.6.2.tgz#907535dbe4d5a6cb4c47ac9b926f6af29576cbc1"
+  integrity sha512-MDW0fKfsn0OI7MS7Euz6h8HNDXVQ0gaM9uW6RjfDmd1DAFcaxX9OqIakHIqhbnmF08Cf2DLDG+ulq8YQQ0Lp0Q==
+  dependencies:
+    "@jest/types" "^26.6.2"
+    "@types/node" "*"
+    chalk "^4.0.0"
+    graceful-fs "^4.2.4"
+    is-ci "^2.0.0"
+    micromatch "^4.0.2"
+
+jest-util@^26.5.2:
   version "26.5.2"
   resolved "https://registry.yarnpkg.com/jest-util/-/jest-util-26.5.2.tgz#8403f75677902cc52a1b2140f568e91f8ed4f4d7"
   integrity sha512-WTL675bK+GSSAYgS8z9FWdCT2nccO1yTIplNLPlP0OD8tUk/H5IrWKMMRudIQQ0qp8bb4k+1Qa8CxGKq9qnYdg==
@@ -4510,11 +4533,6 @@ lodash.ismatch@^4.4.0:
   resolved "https://registry.yarnpkg.com/lodash.ismatch/-/lodash.ismatch-4.4.0.tgz#756cb5150ca3ba6f11085a78849645f188f85f37"
   integrity sha1-dWy1FQyjum8RCFp4hJZF8Yj4Xzc=
 
-lodash.memoize@4.x:
-  version "4.1.2"
-  resolved "https://registry.yarnpkg.com/lodash.memoize/-/lodash.memoize-4.1.2.tgz#bcc6c49a42a2840ed997f323eada5ecd182e0bfe"
-  integrity sha1-vMbEmkKihA7Zl/Mj6tpezRguC/4=
-
 lodash.merge@^4.6.1:
   version "4.6.2"
   resolved "https://registry.yarnpkg.com/lodash.merge/-/lodash.merge-4.6.2.tgz#558aa53b43b661e1925a0afdfa36a9a1085fe57a"
@@ -4550,7 +4568,7 @@ lodash.xorby@^4.7.0:
   resolved "https://registry.yarnpkg.com/lodash.xorby/-/lodash.xorby-4.7.0.tgz#9c19a6f9f063a6eb53dd03c1b6871799801463d7"
   integrity sha1-nBmm+fBjputT3QPBtocXmYAUY9c=
 
-lodash@^4.17.15, lodash@^4.17.19:
+lodash@4.x, 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==
@@ -6420,22 +6438,22 @@ ts-invariant@^0.4.0:
   dependencies:
     tslib "^1.9.3"
 
-ts-jest@26.3.0:
-  version "26.3.0"
-  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-26.3.0.tgz#6b2845045347dce394f069bb59358253bc1338a9"
-  integrity sha512-Jq2uKfx6bPd9+JDpZNMBJMdMQUC3sJ08acISj8NXlVgR2d5OqslEHOR2KHMgwymu8h50+lKIm0m0xj/ioYdW2Q==
+ts-jest@26.5.1:
+  version "26.5.1"
+  resolved "https://registry.yarnpkg.com/ts-jest/-/ts-jest-26.5.1.tgz#4d53ee4481552f57c1624f0bd3425c8b17996150"
+  integrity sha512-G7Rmo3OJMvlqE79amJX8VJKDiRcd7/r61wh9fnvvG8cAjhA9edklGw/dCxRSQmfZ/z8NDums5srSVgwZos1qfg==
   dependencies:
     "@types/jest" "26.x"
     bs-logger "0.x"
     buffer-from "1.x"
     fast-json-stable-stringify "2.x"
-    jest-util "26.x"
+    jest-util "^26.1.0"
     json5 "2.x"
-    lodash.memoize "4.x"
+    lodash "4.x"
     make-error "1.x"
     mkdirp "1.x"
     semver "7.x"
-    yargs-parser "18.x"
+    yargs-parser "20.x"
 
 ts-node@^8:
   version "8.10.2"
@@ -6938,13 +6956,10 @@ yaml@^1.7.2:
   resolved "https://registry.yarnpkg.com/yaml/-/yaml-1.10.0.tgz#3b593add944876077d4d683fee01081bd9fff31e"
   integrity sha512-yr2icI4glYaNG+KWONODapy2/jDdMSDnrONSjblABjD9B4Z5LgiircSt8m8sRZFNi08kG9Sm0uSHtEmP3zaEGg==
 
-yargs-parser@18.x, yargs-parser@^18.1.2, yargs-parser@^18.1.3:
-  version "18.1.3"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-18.1.3.tgz#be68c4975c6b2abf469236b0c870362fab09a7b0"
-  integrity sha512-o50j0JeToy/4K6OZcaQmW6lyXXKhq7csREXcDwk2omFPJEwUNOVtJKvmDr9EI1fAJZUyZcRF7kxGBWmRXudrCQ==
-  dependencies:
-    camelcase "^5.0.0"
-    decamelize "^1.2.0"
+yargs-parser@20.x:
+  version "20.2.4"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-20.2.4.tgz#b42890f14566796f85ae8e3a25290d205f154a54"
+  integrity sha512-WOkpgNhPTlE73h4VFAFsOnomJVaovO8VqLDzy5saChRBFQFBoMYirowyW+Q9HB4HFF4Z7VZTiG3iSzJJA29yRA==
 
 yargs-parser@^10.0.0:
   version "10.1.0"
@@ -6953,6 +6968,14 @@ yargs-parser@^10.0.0:
   dependencies:
     camelcase "^4.1.0"
 
+yargs-parser@^18.1.2, yargs-parser@^18.1.3:
+  version "18.1.3"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-18.1.3.tgz#be68c4975c6b2abf469236b0c870362fab09a7b0"
+  integrity sha512-o50j0JeToy/4K6OZcaQmW6lyXXKhq7csREXcDwk2omFPJEwUNOVtJKvmDr9EI1fAJZUyZcRF7kxGBWmRXudrCQ==
+  dependencies:
+    camelcase "^5.0.0"
+    decamelize "^1.2.0"
+
 yargs@^15.1.0, yargs@^15.3.1, yargs@^15.4.1:
   version "15.4.1"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-15.4.1.tgz#0d87a16de01aee9d8bec2bfbf74f67851730f4f8"