diff --git a/gulpfile.js b/gulpfile.js
index 30a453506..c54e320ef 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -6,7 +6,8 @@ const util = require('util')
 const fs = require('fs')
 const tmp = require('tmp')
 const git = require('isomorphic-git')
-const http = require('isomorphic-git/http/node')
+const { request: delegate } = require('isomorphic-git/http/node')
+const { HttpProxyAgent, HttpsProxyAgent } = require('hpagent')
 const del = require('del')
 const elmMake = require('node-elm-compiler').compile
 const execa = require('execa');
@@ -18,6 +19,16 @@ const mainTsProject = ts.createProject('./tsconfig.json')
 const cliTsProject = ts.createProject('./cli2/tsconfig.json')
 const readFile = util.promisify(fs.readFile)
 
+async function request ({ url, method, headers, body }) {
+    const proxy = url.startsWith('https:')
+      ? { Agent: HttpsProxyAgent, url: process.env.https_proxy }
+      : { Agent: HttpProxyAgent, url: process.env.http_proxy }
+    const agent = proxy.url ? new proxy.Agent({ proxy: proxy.url }) : undefined
+    return delegate({ url, method, agent, headers, body })
+  }
+
+const http = { request };
+
 const config = {
     morphirJvmVersion: '0.18.2',
     morphirJvmCloneDir: tmp.dirSync()
diff --git a/package-lock.json b/package-lock.json
index 5c714c02a..9083643b0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -45,7 +45,8 @@
         "gulp-concat": "^2.6.1",
         "gulp-mocha": "^8.0.0",
         "gulp-typescript": "^6.0.0-alpha.1",
-        "isomorphic-git": "^1.8.1",
+        "hpagent": "^1.2.0",
+        "isomorphic-git": "^1.25.7",
         "jest": "^27.5.1",
         "json-schema": "^0.4.0",
         "mocha": "^9.1.3",
@@ -6310,6 +6311,15 @@
       "integrity": "sha512-mxIDAb9Lsm6DoOJ7xH+5+X4y1LU/4Hi50L9C5sIswK3JzULS4bwk1FvjdBgvYR4bzT4tuUQiC15FE2f5HbLvYw==",
       "dev": true
     },
+    "node_modules/hpagent": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/hpagent/-/hpagent-1.2.0.tgz",
+      "integrity": "sha512-A91dYTeIB6NoXG+PxTQpCCDDnfHsW9kc06Lvpu1TEe9gnd6ZFeiBoRO9JvzEv6xK7EX97/dUE8g/vBMTqTS3CA==",
+      "dev": true,
+      "engines": {
+        "node": ">=14"
+      }
+    },
     "node_modules/html-encoding-sniffer": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/html-encoding-sniffer/-/html-encoding-sniffer-2.0.1.tgz",
@@ -6979,9 +6989,9 @@
       }
     },
     "node_modules/isomorphic-git": {
-      "version": "1.8.2",
-      "resolved": "https://registry.npmjs.org/isomorphic-git/-/isomorphic-git-1.8.2.tgz",
-      "integrity": "sha512-wp3on2Kks1sE/tLUmGLPV7EEAj+JRK8WoL2ZSfJHVQfWzRqMRv96bqzDjyYpC6COGKlDQnhTNCucRf83S3cuMw==",
+      "version": "1.25.7",
+      "resolved": "https://registry.npmjs.org/isomorphic-git/-/isomorphic-git-1.25.7.tgz",
+      "integrity": "sha512-KE10ejaIsEpQ+I/apS33qqTjyzCXgOniEaL32DwNbXtboKG8H3cu+RiBcdp3G9w4MpOOTQfGPsWp4i8UxRfDLg==",
       "dev": true,
       "dependencies": {
         "async-lock": "^1.1.0",
@@ -6994,13 +7004,13 @@
         "pify": "^4.0.1",
         "readable-stream": "^3.4.0",
         "sha.js": "^2.4.9",
-        "simple-get": "^3.0.2"
+        "simple-get": "^4.0.1"
       },
       "bin": {
         "isogit": "cli.cjs"
       },
       "engines": {
-        "node": ">=10"
+        "node": ">=12"
       }
     },
     "node_modules/isomorphic-git/node_modules/pify": {
@@ -10896,35 +10906,52 @@
       ]
     },
     "node_modules/simple-get": {
-      "version": "3.1.1",
-      "resolved": "https://registry.npmjs.org/simple-get/-/simple-get-3.1.1.tgz",
-      "integrity": "sha512-CQ5LTKGfCpvE1K0n2us+kuMPbk/q0EKl82s4aheV9oXjFEz6W/Y7oQFVJuU6QG77hRT4Ghb5RURteF5vnWjupA==",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/simple-get/-/simple-get-4.0.1.tgz",
+      "integrity": "sha512-brv7p5WgH0jmQJr1ZDDfKDOSeWWg+OVypG99A/5vYGPqJ6pxiaHLy8nxtFjBA7oMa01ebA9gfh1uMCFqOuXxvA==",
       "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
       "dependencies": {
-        "decompress-response": "^4.2.0",
+        "decompress-response": "^6.0.0",
         "once": "^1.3.1",
         "simple-concat": "^1.0.0"
       }
     },
     "node_modules/simple-get/node_modules/decompress-response": {
-      "version": "4.2.1",
-      "resolved": "https://registry.npmjs.org/decompress-response/-/decompress-response-4.2.1.tgz",
-      "integrity": "sha512-jOSne2qbyE+/r8G1VU+G/82LBs2Fs4LAsTiLSHOCOMZQl2OKZ6i8i4IyHemTe+/yIXOtTcRQMzPcgyhoFlqPkw==",
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/decompress-response/-/decompress-response-6.0.0.tgz",
+      "integrity": "sha512-aW35yZM6Bb/4oJlZncMH2LCoZtJXTRxES17vE3hoRiowU2kWHaJKFkSBDnDR+cm9J+9QhXmREyIfv0pji9ejCQ==",
       "dev": true,
       "dependencies": {
-        "mimic-response": "^2.0.0"
+        "mimic-response": "^3.1.0"
       },
       "engines": {
-        "node": ">=8"
+        "node": ">=10"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
       }
     },
     "node_modules/simple-get/node_modules/mimic-response": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/mimic-response/-/mimic-response-2.1.0.tgz",
-      "integrity": "sha512-wXqjST+SLt7R009ySCglWBCFpjUygmCIfD790/kVbiGmUgfYGuB14PiTd5DwVxSV4NcYHjzMkoj5LjQZwTQLEA==",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/mimic-response/-/mimic-response-3.1.0.tgz",
+      "integrity": "sha512-z0yWI+4FDrrweS8Zmt4Ej5HdJmky15+L2e6Wgn3+iK5fWzb6T3fhNFq2+MeTRb064c6Wr4N/wv0DzQTjNzHNGQ==",
       "dev": true,
       "engines": {
-        "node": ">=8"
+        "node": ">=10"
       },
       "funding": {
         "url": "https://github.com/sponsors/sindresorhus"
@@ -17814,6 +17841,12 @@
       "integrity": "sha512-mxIDAb9Lsm6DoOJ7xH+5+X4y1LU/4Hi50L9C5sIswK3JzULS4bwk1FvjdBgvYR4bzT4tuUQiC15FE2f5HbLvYw==",
       "dev": true
     },
+    "hpagent": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/hpagent/-/hpagent-1.2.0.tgz",
+      "integrity": "sha512-A91dYTeIB6NoXG+PxTQpCCDDnfHsW9kc06Lvpu1TEe9gnd6ZFeiBoRO9JvzEv6xK7EX97/dUE8g/vBMTqTS3CA==",
+      "dev": true
+    },
     "html-encoding-sniffer": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/html-encoding-sniffer/-/html-encoding-sniffer-2.0.1.tgz",
@@ -18316,9 +18349,9 @@
       "dev": true
     },
     "isomorphic-git": {
-      "version": "1.8.2",
-      "resolved": "https://registry.npmjs.org/isomorphic-git/-/isomorphic-git-1.8.2.tgz",
-      "integrity": "sha512-wp3on2Kks1sE/tLUmGLPV7EEAj+JRK8WoL2ZSfJHVQfWzRqMRv96bqzDjyYpC6COGKlDQnhTNCucRf83S3cuMw==",
+      "version": "1.25.7",
+      "resolved": "https://registry.npmjs.org/isomorphic-git/-/isomorphic-git-1.25.7.tgz",
+      "integrity": "sha512-KE10ejaIsEpQ+I/apS33qqTjyzCXgOniEaL32DwNbXtboKG8H3cu+RiBcdp3G9w4MpOOTQfGPsWp4i8UxRfDLg==",
       "dev": true,
       "requires": {
         "async-lock": "^1.1.0",
@@ -18331,7 +18364,7 @@
         "pify": "^4.0.1",
         "readable-stream": "^3.4.0",
         "sha.js": "^2.4.9",
-        "simple-get": "^3.0.2"
+        "simple-get": "^4.0.1"
       },
       "dependencies": {
         "pify": {
@@ -21356,29 +21389,29 @@
       "dev": true
     },
     "simple-get": {
-      "version": "3.1.1",
-      "resolved": "https://registry.npmjs.org/simple-get/-/simple-get-3.1.1.tgz",
-      "integrity": "sha512-CQ5LTKGfCpvE1K0n2us+kuMPbk/q0EKl82s4aheV9oXjFEz6W/Y7oQFVJuU6QG77hRT4Ghb5RURteF5vnWjupA==",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/simple-get/-/simple-get-4.0.1.tgz",
+      "integrity": "sha512-brv7p5WgH0jmQJr1ZDDfKDOSeWWg+OVypG99A/5vYGPqJ6pxiaHLy8nxtFjBA7oMa01ebA9gfh1uMCFqOuXxvA==",
       "dev": true,
       "requires": {
-        "decompress-response": "^4.2.0",
+        "decompress-response": "^6.0.0",
         "once": "^1.3.1",
         "simple-concat": "^1.0.0"
       },
       "dependencies": {
         "decompress-response": {
-          "version": "4.2.1",
-          "resolved": "https://registry.npmjs.org/decompress-response/-/decompress-response-4.2.1.tgz",
-          "integrity": "sha512-jOSne2qbyE+/r8G1VU+G/82LBs2Fs4LAsTiLSHOCOMZQl2OKZ6i8i4IyHemTe+/yIXOtTcRQMzPcgyhoFlqPkw==",
+          "version": "6.0.0",
+          "resolved": "https://registry.npmjs.org/decompress-response/-/decompress-response-6.0.0.tgz",
+          "integrity": "sha512-aW35yZM6Bb/4oJlZncMH2LCoZtJXTRxES17vE3hoRiowU2kWHaJKFkSBDnDR+cm9J+9QhXmREyIfv0pji9ejCQ==",
           "dev": true,
           "requires": {
-            "mimic-response": "^2.0.0"
+            "mimic-response": "^3.1.0"
           }
         },
         "mimic-response": {
-          "version": "2.1.0",
-          "resolved": "https://registry.npmjs.org/mimic-response/-/mimic-response-2.1.0.tgz",
-          "integrity": "sha512-wXqjST+SLt7R009ySCglWBCFpjUygmCIfD790/kVbiGmUgfYGuB14PiTd5DwVxSV4NcYHjzMkoj5LjQZwTQLEA==",
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/mimic-response/-/mimic-response-3.1.0.tgz",
+          "integrity": "sha512-z0yWI+4FDrrweS8Zmt4Ej5HdJmky15+L2e6Wgn3+iK5fWzb6T3fhNFq2+MeTRb064c6Wr4N/wv0DzQTjNzHNGQ==",
           "dev": true
         }
       }
diff --git a/package.json b/package.json
index 4076a1bb8..ad7c37dac 100644
--- a/package.json
+++ b/package.json
@@ -82,7 +82,8 @@
     "gulp-concat": "^2.6.1",
     "gulp-mocha": "^8.0.0",
     "gulp-typescript": "^6.0.0-alpha.1",
-    "isomorphic-git": "^1.8.1",
+    "hpagent": "^1.2.0",
+    "isomorphic-git": "^1.25.7",
     "jest": "^27.5.1",
     "json-schema": "^0.4.0",
     "mocha": "^9.1.3",