diff --git a/packages/shell-api/src/field-level-encryption.spec.ts b/packages/shell-api/src/field-level-encryption.spec.ts
index 6225a036e..9fab4b624 100644
--- a/packages/shell-api/src/field-level-encryption.spec.ts
+++ b/packages/shell-api/src/field-level-encryption.spec.ts
@@ -778,7 +778,7 @@ describe('Field Level Encryption', function () {
       sinon.replace(
         require('tls'),
         'connect',
-        sinon.fake((options, onConnect) => {
+        sinon.fake((options: any, onConnect: Function) => {
           if (options.host === 'kmip.example.com') {
             // KMIP is not http(s)-based, we don't implement strong fakes for it
             // and instead only verify that a connection has occurred.
diff --git a/packages/shell-api/src/help.spec.ts b/packages/shell-api/src/help.spec.ts
index 86b032f40..bb78a62ca 100644
--- a/packages/shell-api/src/help.spec.ts
+++ b/packages/shell-api/src/help.spec.ts
@@ -7,7 +7,7 @@ describe('Help', function () {
   let translate: (str: string) => string;
 
   beforeEach(function () {
-    translate = sinon.fake((x) => `translated: ${x}`);
+    translate = sinon.fake((x: string) => `translated: ${x}`);
   });
 
   describe('#toShellResult', function () {