diff --git a/.github/workflows/pip-audit.yml b/.github/workflows/pip-audit.yml
index 39cbb9c..3860538 100644
--- a/.github/workflows/pip-audit.yml
+++ b/.github/workflows/pip-audit.yml
@@ -26,7 +26,7 @@ jobs:
           python -m venv /tmp/pip-audit-env
           source /tmp/pip-audit-env/bin/activate
 
-          python -m pip install --upgrade pip
+          python -m pip install --upgrade pip setuptools wheel
           python -m pip install .
 
 
diff --git a/setup.py b/setup.py
index 48d2151..ffa5639 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
     description="Manage multiple Solidity compiler versions.",
     url="https://github.com/crytic/solc-select",
     author="Trail of Bits",
-    version="1.0.2",
+    version="1.0.3",
     packages=find_packages(),
     python_requires=">=3.6",
     license="AGPL-3.0",
diff --git a/solc_select/constants.py b/solc_select/constants.py
index 5d7a238..5513306 100644
--- a/solc_select/constants.py
+++ b/solc_select/constants.py
@@ -20,3 +20,9 @@
 WINDOWS_AMD64 = "windows-amd64"
 
 EARLIEST_RELEASE = {"macosx-amd64": "0.3.6", "linux-amd64": "0.4.0", "windows-amd64": "0.4.5"}
+
+# URL
+CRYTIC_SOLC_ARTIFACTS = "https://raw.githubusercontent.com/crytic/solc/master/linux/amd64/"
+CRYTIC_SOLC_JSON = (
+    "https://raw.githubusercontent.com/crytic/solc/new-list-json/linux/amd64/list.json"
+)
diff --git a/solc_select/solc_select.py b/solc_select/solc_select.py
index 649dfd5..930ec42 100644
--- a/solc_select/solc_select.py
+++ b/solc_select/solc_select.py
@@ -17,6 +17,8 @@
     EARLIEST_RELEASE,
     SOLC_SELECT_DIR,
     ARTIFACTS_DIR,
+    CRYTIC_SOLC_ARTIFACTS,
+    CRYTIC_SOLC_JSON,
 )
 
 Path.mkdir(ARTIFACTS_DIR, parents=True, exist_ok=True)
@@ -44,22 +46,25 @@ def upgrade_architecture() -> None:
 
 
 def current_version() -> (str, str):
-    version = os.environ.get("SOLC_VERSION")
     source = "SOLC_VERSION"
-    if version:
-        if version not in installed_versions():
-            raise argparse.ArgumentTypeError(
-                f"Version '{version}' not installed (set by {source}). Run `solc-select install {version}`."
-            )
-    else:
-        source = SOLC_SELECT_DIR.joinpath("global-version")
-        if Path.is_file(source):
-            with open(source, encoding="utf-8") as f:
+    version = os.environ.get(source)
+    if not version:
+        source_path = SOLC_SELECT_DIR.joinpath("global-version")
+        source = source_path.as_posix()
+        if Path.is_file(source_path):
+            with open(source_path, encoding="utf-8") as f:
                 version = f.read()
         else:
             raise argparse.ArgumentTypeError(
                 "No solc version set. Run `solc-select use VERSION` or set SOLC_VERSION environment variable."
             )
+    versions = installed_versions()
+    if version not in versions:
+        raise argparse.ArgumentTypeError(
+            f"\nVersion '{version}' not installed (set by {source})."
+            f"\nRun `solc-select install {version}`."
+            f"\nOr use one of the following versions: {versions}"
+        )
     return version, source
 
 
@@ -78,6 +83,11 @@ def install_artifacts(versions: [str]) -> bool:
                 continue
 
         (url, _) = get_url(version, artifact)
+
+        if is_linux_0818(version):
+            url = CRYTIC_SOLC_ARTIFACTS + artifact
+            print(url)
+
         artifact_file_dir = ARTIFACTS_DIR.joinpath(f"solc-{version}")
         Path.mkdir(artifact_file_dir, parents=True, exist_ok=True)
         print(f"Installing '{version}'...")
@@ -103,6 +113,10 @@ def is_older_linux(version: str) -> bool:
     return soliditylang_platform() == LINUX_AMD64 and Version(version) <= Version("0.4.10")
 
 
+def is_linux_0818(version: str) -> bool:
+    return soliditylang_platform() == LINUX_AMD64 and Version(version) == Version("0.8.18")
+
+
 def is_older_windows(version: str) -> bool:
     return soliditylang_platform() == WINDOWS_AMD64 and Version(version) <= Version("0.7.1")
 
@@ -148,8 +162,8 @@ def get_url(version: str = "", artifact: str = "") -> (str, str):
     if soliditylang_platform() == LINUX_AMD64:
         if version != "" and is_older_linux(version):
             return (
-                f"https://raw.githubusercontent.com/crytic/solc/master/linux/amd64/{artifact}",
-                "https://raw.githubusercontent.com/crytic/solc/new-list-json/linux/amd64/list.json",
+                CRYTIC_SOLC_ARTIFACTS + artifact,
+                CRYTIC_SOLC_JSON,
             )
     return (
         f"https://binaries.soliditylang.org/{soliditylang_platform()}/{artifact}",