diff --git a/src/orca/ax_utilities_application.py b/src/orca/ax_utilities_application.py
index dbaca2e48..80f2640d4 100644
--- a/src/orca/ax_utilities_application.py
+++ b/src/orca/ax_utilities_application.py
@@ -188,7 +188,7 @@ class AXUtilitiesApplication:
 
         pid = AXUtilitiesApplication.get_process_id(app)
         try:
-            state = subprocess.getoutput(f"cat /proc/{pid}/status | grep State")
+            state = subprocess.getoutput(f"@cat@ /proc/{pid}/status | @grep@ State")
             state = state.split()[1]
         except (GLib.GError, IndexError) as error:
             tokens = [f"AXUtilitiesApplication: Exception checking state of pid {pid}: {error}"]
diff --git a/src/orca/debugging_tools_manager.py b/src/orca/debugging_tools_manager.py
index b4abce719..cff5a78a6 100644
--- a/src/orca/debugging_tools_manager.py
+++ b/src/orca/debugging_tools_manager.py
@@ -243,7 +243,7 @@ class DebuggingToolsManager:
             else:
                 name = AXObject.get_name(app) or "[DEAD]"
             try:
-                cmdline = subprocess.getoutput(f"cat /proc/{pid}/cmdline")
+                cmdline = subprocess.getoutput(f"@cat@ /proc/{pid}/cmdline")
             except subprocess.SubprocessError as error:
                 cmdline = f"EXCEPTION: {error}"
             else:
diff --git a/src/orca/orca_bin.py.in b/src/orca/orca_bin.py.in
index 3fc845dc3..a82947911 100755
--- a/src/orca/orca_bin.py.in
+++ b/src/orca/orca_bin.py.in
@@ -238,7 +238,7 @@ def in_graphical_desktop() -> bool:
 def other_orcas() -> list[int]:
     """Returns the pid of any other instances of Orca owned by this user."""
 
-    with subprocess.Popen(f"pgrep -u {os.getuid()} -x orca",
+    with subprocess.Popen(f"@pgrep@ -u {os.getuid()} -x orca",
                           shell=True,
                           stdout=subprocess.PIPE) as proc:
         pids = proc.stdout.read() if proc.stdout else b""
diff --git a/src/orca/orca_modifier_manager.py b/src/orca/orca_modifier_manager.py
index 098b0a033..e7b040d82 100644
--- a/src/orca/orca_modifier_manager.py
+++ b/src/orca/orca_modifier_manager.py
@@ -236,7 +236,7 @@ class OrcaModifierManager:
             return
 
         self.unset_orca_modifiers(reason)
-        with subprocess.Popen(["xkbcomp", display, "-"],
+        with subprocess.Popen(["@xkbcomp@", display, "-"],
                               stdout=subprocess.PIPE, stderr=subprocess.DEVNULL) as p:
             self._original_xmodmap, _ = p.communicate()
         self._create_orca_xmodmap()
@@ -274,7 +274,7 @@ class OrcaModifierManager:
             return
 
         self._caps_lock_cleared = False
-        with subprocess.Popen(["xkbcomp", "-w0", "-", display],
+        with subprocess.Popen(["@xkbcomp@", "-w0", "-", display],
                               stdin=subprocess.PIPE, stdout=None, stderr=None) as p:
             p.communicate(self._original_xmodmap)
 
@@ -349,7 +349,7 @@ class OrcaModifierManager:
             debug.print_message(debug.LEVEL_INFO, msg, True)
 
 
-            with subprocess.Popen(["xkbcomp", "-w0", "-", display],
+            with subprocess.Popen(["@xkbcomp@", "-w0", "-", display],
                               stdin=subprocess.PIPE, stdout=None, stderr=None) as p:
                 p.communicate(bytes('\n'.join(lines), 'UTF-8'))
         else: