diff --git a/README.md b/README.md
index 6cb337e6..8d582a87 100644
--- a/README.md
+++ b/README.md
@@ -121,7 +121,7 @@ const v1 = require("cloudevents-sdk/v1");
  */
 let myevent = v1.event()
   .type("com.github.pull.create")
-  .source("urn:event:from:myapi/resourse/123");
+  .source("urn:event:from:myapi/resource/123");
 ```
 
 #### Formatting
@@ -134,7 +134,7 @@ const v1 = require("cloudevents-sdk/v1");
  */
 let myevent = v1.event()
   .type("com.github.pull.create")
-  .source("urn:event:from:myapi/resourse/123");
+  .source("urn:event:from:myapi/resource/123");
 
 /*
  * Format the payload and return it
@@ -152,7 +152,7 @@ const v1 = require("cloudevents-sdk/v1");
  */
 let myevent = v1.event()
   .type("com.github.pull.create")
-  .source("urn:event:from:myapi/resourse/123");
+  .source("urn:event:from:myapi/resource/123");
 
 // The binding configuration using POST
 let config = {
diff --git a/test/bindings/http/receiver_binary_1_tests.js b/test/bindings/http/receiver_binary_1_tests.js
index 9116bace..6d778150 100644
--- a/test/bindings/http/receiver_binary_1_tests.js
+++ b/test/bindings/http/receiver_binary_1_tests.js
@@ -430,7 +430,7 @@ describe("HTTP Transport Binding Binary Receiver for CloudEvents v1.0", () => {
 
     it("Should accept 'extension1'", () => {
       // setup
-      const extension1 = "mycuston-ext1";
+      const extension1 = "mycustom-ext1";
       const payload = {
         data: "dataString"
       };
diff --git a/test/bindings/http/receiver_structured_1_test.js b/test/bindings/http/receiver_structured_1_test.js
index 313d5c11..caee580e 100644
--- a/test/bindings/http/receiver_structured_1_test.js
+++ b/test/bindings/http/receiver_structured_1_test.js
@@ -10,7 +10,7 @@ const HTTPStructuredReceiver =
 const receiver = new HTTPStructuredReceiver();
 
 const type = "com.github.pull.create";
-const source = "urn:event:from:myapi/resourse/123";
+const source = "urn:event:from:myapi/resource/123";
 const now = new Date();
 const dataschema = "http://cloudevents.io/schema.json";
 
@@ -130,7 +130,7 @@ describe("HTTP Transport Binding Structured Receiver for CloudEvents v1.0",
 
       it("Should accept 'extension1'", () => {
       // setup
-        const extension1 = "mycuston-ext1";
+        const extension1 = "mycustom-ext1";
         const payload = v1.event()
           .type(type)
           .source(source)
@@ -154,7 +154,7 @@ describe("HTTP Transport Binding Structured Receiver for CloudEvents v1.0",
           .to.equal(extension1);
       });
 
-      it("Should parse 'data' stringfied json to json object", () => {
+      it("Should parse 'data' stringified json to json object", () => {
       // setup
         const payload = v1.event()
           .type(type)
diff --git a/test/http_binding_1.js b/test/http_binding_1.js
index 8725c3e4..300c908c 100644
--- a/test/http_binding_1.js
+++ b/test/http_binding_1.js
@@ -11,7 +11,7 @@ const {
 } = require("../v1/index.js");
 
 const type = "com.github.pull.create";
-const source = "urn:event:from:myapi/resourse/123";
+const source = "urn:event:from:myapi/resource/123";
 const contentType = "application/cloudevents+json; charset=utf-8";
 const now = new Date();
 const dataschema = "http://cloudevents.io/schema.json";
diff --git a/test/spec_1_tests.js b/test/spec_1_tests.js
index 25344b1c..71ace864 100644
--- a/test/spec_1_tests.js
+++ b/test/spec_1_tests.js
@@ -6,7 +6,7 @@ const { asBase64 } = require("../lib/utils/fun.js");
 
 const id = uuidv4();
 const type = "com.github.pull.create";
-const source = "urn:event:from:myapi/resourse/123";
+const source = "urn:event:from:myapi/resource/123";
 const time = new Date();
 const dataschema = "http://example.com/registry/myschema.json";
 const dataContentType = "application/json";
@@ -63,7 +63,7 @@ describe("CloudEvents Spec v1.0", () => {
     });
   });
 
-  describe("Extenstions Constraints", () => {
+  describe("Extensions Constraints", () => {
     it("should be ok when type is 'boolean'", () => {
       cloudevent.addExtension("ext-boolean", true);
       expect(cloudevent.spec.payload["ext-boolean"])
@@ -126,7 +126,7 @@ describe("CloudEvents Spec v1.0", () => {
         cloudevent.spec.payload.id = id;
       });
 
-      it("should throw an erro when is empty", () => {
+      it("should throw an error when is empty", () => {
         cloudevent.spec.payload.id = "";
         expect(cloudevent.format.bind(cloudevent))
           .to