diff --git a/crates/cli/src/subcommands/dev.rs b/crates/cli/src/subcommands/dev.rs
index 14bdb222f26..c8541ba76ab 100644
--- a/crates/cli/src/subcommands/dev.rs
+++ b/crates/cli/src/subcommands/dev.rs
@@ -323,6 +323,7 @@ fn upsert_env_db_names_and_hosts(env_path: &Path, server_host_url: &str, databas
     } else {
         String::new()
     };
+    let original_contents = contents.clone();
 
     for prefix in prefixes {
         for (suffix, value) in [("DB_NAME", database_name), ("HOST", server_host_url)] {
@@ -343,7 +344,9 @@ fn upsert_env_db_names_and_hosts(env_path: &Path, server_host_url: &str, databas
         contents.push('\n');
     }
 
-    fs::write(env_path, contents)?;
+    if contents != original_contents {
+        fs::write(env_path, contents)?;
+    }
     Ok(())
 }
 
diff --git a/crates/cli/src/subcommands/generate.rs b/crates/cli/src/subcommands/generate.rs
index a0cd8b1fb39..4e6fb5ec124 100644
--- a/crates/cli/src/subcommands/generate.rs
+++ b/crates/cli/src/subcommands/generate.rs
@@ -200,7 +200,9 @@ pub async fn exec_ex(
             fs::create_dir_all(out_dir.join(parent))?;
         }
         let path = out_dir.join(fname);
-        fs::write(&path, code)?;
+        if !path.exists() || fs::read_to_string(&path)? != code {
+            fs::write(&path, code)?;
+        }
         paths.insert(path);
     }