diff --git a/package-lock.json b/package-lock.json
index 4e0d262..bd2e5cf 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
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@@ -873,7 +873,7 @@
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@@ -887,7 +887,7 @@
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@@ -1283,7 +1283,7 @@
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@@ -1567,12 +1567,12 @@
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     "v8-compile-cache": {
       "version": "2.3.0",
@@ -2509,7 +2509,7 @@
     "vary": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
-      "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
+      "integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg=="
     },
     "vscode-languageserver-types": {
       "version": "3.16.0",
diff --git a/src/client.js b/src/client.js
index 858b1e4..bd3eec6 100644
--- a/src/client.js
+++ b/src/client.js
@@ -15,9 +15,11 @@ const makeClient = options => {
     websocket,
     headers,
     hook,
+    allowInsecure,
   } = options;
 
   const clientContext = {
+    httpsAgent: null,
     endpoint,
     headers: cloneObject(headers || {}),
     websocket: {
@@ -30,6 +32,15 @@ const makeClient = options => {
     },
   };
 
+  if (allowInsecure) {
+    try {
+      const nodeHttps = require('node:https');
+      clientContext.httpsAgent = new nodeHttps.Agent({rejectUnauthorized: false});
+    } catch (e) {
+      console.error(e);
+    }
+  }
+
   const executeQuery = async (queryOptions, successCallback, errorCallback) => {
     const {
       query,
@@ -53,6 +64,7 @@ const makeClient = options => {
           method: 'POST',
           headers,
           body: JSON.stringify({query, variables: (variables || {})}),
+          agent: clientContext.httpsAgent,
         },
       );
       const responseObj = await response.json();
diff --git a/src/command.js b/src/command.js
index 87c1482..0427b91 100644
--- a/src/command.js
+++ b/src/command.js
@@ -57,6 +57,7 @@ class GraphqurlCommand extends Command {
           headers,
           variables,
           name: flags.name,
+          allowInsecure: flags.insecure,
         }, successCallback, errorCallback);
       } catch (e) {
         this.error(e);
@@ -69,6 +70,7 @@ class GraphqurlCommand extends Command {
       headers,
       variables,
       name: flags.name,
+      allowInsecure: flags.insecure,
     };
 
     cli.action.start('Executing query');
@@ -291,6 +293,12 @@ GraphqurlCommand.flags = {
     default: 'graphql',
     options: ['json', 'graphql'],
   }),
+
+  insecure: flags.boolean({
+    default: false,
+    char: 'k',
+    description: 'allow unauthorized TLS certificates (e.g. self-signed)',
+  }),
 };
 
 GraphqurlCommand.args = [
diff --git a/src/query.js b/src/query.js
index 1870328..d3de6db 100644
--- a/src/query.js
+++ b/src/query.js
@@ -2,11 +2,18 @@ const makeClient = require('./client');
 const {wsScheme} = require('./utils');
 const {parse} = require('graphql/language');
 
+let nodeHttps;
+try {
+  nodeHttps = require('node:https');
+} catch (err) {
+}
+
 const query = async function (options, successCb, errorCb) {
-  const {query, endpoint, headers, variables, name} = options;
+  const {query, endpoint, headers, variables, name, allowInsecure} = options;
   let client = makeClient({
     endpoint,
     headers,
+    allowInsecure,
   });
 
   let input, queryType;
@@ -83,7 +90,8 @@ const query = async function (options, successCb, errorCb) {
           onConnectionSuccess: () => {
             client.subscribe({
               subscription: query,
-              variables},
+              variables,
+            },
             callbackWrapper(successCb),
             callbackWrapper(errorCb),
             );
@@ -93,7 +101,8 @@ const query = async function (options, successCb, errorCb) {
     } else {
       await client.query({
         query: query,
-        variables},
+        variables,
+      },
       callbackWrapper(successCb),
       callbackWrapper(errorCb),
       );
diff --git a/src/ui.js b/src/ui.js
index 1c56c2a..795cdad 100644
--- a/src/ui.js
+++ b/src/ui.js
@@ -141,7 +141,7 @@ term.on('key', async function (key) {
   }
 });
 
-const getQueryFromTerminalUI = ()  => {
+const getQueryFromTerminalUI = () => {
   return new Promise((resolve, reject) => {
     gResolve = resolve;
     gReject = reject;
@@ -149,15 +149,17 @@ const getQueryFromTerminalUI = ()  => {
   });
 };
 
-const executeQueryFromTerminalUI = async (queryOptions, successCb, errorCb)  => {
+const executeQueryFromTerminalUI = async (queryOptions, successCb, errorCb) => {
   const {
     endpoint,
     headers,
+    allowInsecure,
   } = queryOptions;
   cli.action.start('Introspecting schema');
   let client = makeClient({
     endpoint,
     headers,
+    allowInsecure,
   });
   let schemaResponse;
   try {