diff --git a/lib/entry-points.js b/lib/entry-points.js
index 00a0da96b..675b28f94 100644
--- a/lib/entry-points.js
+++ b/lib/entry-points.js
@@ -180629,11 +180629,6 @@ async function run({
         "`expect-error` input parameter is for internal use only. It should only be set by codeql-action or a fork."
       );
     }
-    if (process.env.CODEQL_PROXY_HOST === "" && !await codeQlVersionAtLeast(codeql, "2.20.7")) {
-      delete process.env.CODEQL_PROXY_HOST;
-      delete process.env.CODEQL_PROXY_PORT;
-      delete process.env.CODEQL_PROXY_CA_CERTIFICATE;
-    }
     if (getOptionalInput("cleanup-level")) {
       logger2.info(
         "The 'cleanup-level' input is ignored since the CodeQL Action now automatically manages database cleanup. This input can safely be removed from your workflow."
diff --git a/src/analyze-action.ts b/src/analyze-action.ts
index 7963fa52b..a954ed40f 100644
--- a/src/analyze-action.ts
+++ b/src/analyze-action.ts
@@ -267,17 +267,6 @@ async function run({
       );
     }
 
-    // Unset the CODEQL_PROXY_* environment variables when using older CodeQL
-    // CLIs, as they are not needed and can cause issues.
-    if (
-      process.env.CODEQL_PROXY_HOST === "" &&
-      !(await util.codeQlVersionAtLeast(codeql, "2.20.7"))
-    ) {
-      delete process.env.CODEQL_PROXY_HOST;
-      delete process.env.CODEQL_PROXY_PORT;
-      delete process.env.CODEQL_PROXY_CA_CERTIFICATE;
-    }
-
     if (actionsUtil.getOptionalInput("cleanup-level")) {
       logger.info(
         "The 'cleanup-level' input is ignored since the CodeQL Action now automatically " +