diff --git a/api/src/job.js b/api/src/job.js
index d46120b..8c3fa79 100644
--- a/api/src/job.js
+++ b/api/src/job.js
@@ -156,7 +156,11 @@ class Job {
                 '-s',
                 '-c',
                 '/box/submission',
-                '-e',
+                '-E',
+                'HOME=/tmp',
+                ...this.runtime.env_vars.flat_map(v => ['-E', v]),
+                '-E',
+                `PISTON_LANGUAGE=${this.runtime.language}`,
                 `--dir=${this.runtime.pkgdir}`,
                 `--dir=/etc:noexec`,
                 `--processes=${this.runtime.max_process_count}`,
@@ -175,10 +179,6 @@ class Job {
                 ...args,
             ],
             {
-                env: {
-                    ...this.runtime.env_vars,
-                    PISTON_LANGUAGE: this.runtime.language,
-                },
                 stdio: 'pipe',
             }
         );
diff --git a/api/src/runtime.js b/api/src/runtime.js
index 9a2adf4..90a2225 100644
--- a/api/src/runtime.js
+++ b/api/src/runtime.js
@@ -178,15 +178,7 @@ class Runtime {
             const env_file = path.join(this.pkgdir, '.env');
             const env_content = fss.read_file_sync(env_file).toString();
 
-            this._env_vars = {};
-
-            env_content
-                .trim()
-                .split('\n')
-                .map(line => line.split('=', 2))
-                .forEach(([key, val]) => {
-                    this._env_vars[key.trim()] = val.trim();
-                });
+            this._env_vars = env_content.trim().split('\n');
         }
 
         return this._env_vars;
diff --git a/packages/python/3.10.0/build.sh b/packages/python/3.10.0/build.sh
index 62fef92..24315d5 100755
--- a/packages/python/3.10.0/build.sh
+++ b/packages/python/3.10.0/build.sh
@@ -18,4 +18,4 @@ cd ..
 
 rm -rf build
 
-bin/pip3 install numpy scipy pandas pycrypto whoosh bcrypt passlib sympy xxhash base58 cryptography PyNaCl
+bin/pip3 install numpy scipy pandas pycrypto whoosh bcrypt passlib sympy xxhash base58 cryptography PyNaCl pydantic geopy geojson h3==4.0.0b4
diff --git a/packages/python/3.11.0/build.sh b/packages/python/3.11.0/build.sh
index 8db680c..538194c 100644
--- a/packages/python/3.11.0/build.sh
+++ b/packages/python/3.11.0/build.sh
@@ -18,4 +18,4 @@ cd ..
 
 rm -rf build
 
-bin/pip3 install numpy scipy pandas pycryptodome whoosh bcrypt passlib sympy xxhash base58 cryptography PyNaCl
+bin/pip3 install numpy scipy pandas pycryptodome whoosh bcrypt passlib sympy xxhash base58 cryptography PyNaCl pydantic geopy geojson h3==4.0.0b4
diff --git a/packages/python/3.12.0/build.sh b/packages/python/3.12.0/build.sh
index 4de24a7..0609a97 100644
--- a/packages/python/3.12.0/build.sh
+++ b/packages/python/3.12.0/build.sh
@@ -18,4 +18,4 @@ cd ..
 
 rm -rf build
 
-bin/pip3 install numpy scipy pandas pycryptodome whoosh bcrypt passlib sympy xxhash base58 cryptography PyNaCl
+bin/pip3 install numpy scipy pandas pycryptodome whoosh bcrypt passlib sympy xxhash base58 cryptography PyNaCl pydantic geopy geojson h3==4.0.0b4