diff --git a/quickshell/Common/Theme.qml b/quickshell/Common/Theme.qml
index 354d70aa..805a1dd0 100644
--- a/quickshell/Common/Theme.qml
+++ b/quickshell/Common/Theme.qml
@@ -140,7 +140,7 @@ Singleton {
 
     Component.onCompleted: {
         Quickshell.execDetached(["mkdir", "-p", stateDir]);
-        Proc.runCommand("matugenCheck", ["which", "matugen"], (output, code) => {
+        Proc.runCommand("matugenCheck", ["sh", "-c", "command -v matugen"], (output, code) => {
             matugenAvailable = (code === 0) && !envDisableMatugen;
             const isGreeterMode = (typeof SessionData !== "undefined" && SessionData.isGreeterMode);
 
diff --git a/quickshell/PLUGINS/ExampleStartupCheck/StartupCheck.qml b/quickshell/PLUGINS/ExampleStartupCheck/StartupCheck.qml
index 928d0217..92dd75c4 100644
--- a/quickshell/PLUGINS/ExampleStartupCheck/StartupCheck.qml
+++ b/quickshell/PLUGINS/ExampleStartupCheck/StartupCheck.qml
@@ -8,7 +8,7 @@ QtObject {
     //   done({ title, details })         -> block with an expandable details body
     // A synchronous variant (no argument, return the result) is also supported.
     function check(done) {
-        Proc.runCommand("exampleStartupCheck.depCheck", ["which", "boregard"], (stdout, exitCode) => {
+        Proc.runCommand("exampleStartupCheck.depCheck", ["sh", "-c", "command -v boregard"], (stdout, exitCode) => {
             if (exitCode === 0) {
                 done(null);
                 return;
diff --git a/quickshell/Services/CavaService.qml b/quickshell/Services/CavaService.qml
index 25d101bb..622e2c60 100644
--- a/quickshell/Services/CavaService.qml
+++ b/quickshell/Services/CavaService.qml
@@ -18,7 +18,7 @@ Singleton {
     Process {
         id: cavaCheck
 
-        command: ["which", "cava"]
+        command: ["sh", "-c", "command -v cava"]
         running: false
         onExited: exitCode => {
             root.cavaAvailable = exitCode === 0 && Quickshell.env("DMS_DISABLE_CAVA") !== "1";
diff --git a/quickshell/Services/DgopService.qml b/quickshell/Services/DgopService.qml
index 0d00f806..99a7b445 100644
--- a/quickshell/Services/DgopService.qml
+++ b/quickshell/Services/DgopService.qml
@@ -713,7 +713,7 @@ Singleton {
 
     Process {
         id: dgopCheckProcess
-        command: ["which", "dgop"]
+        command: ["sh", "-c", "command -v dgop"]
         running: false
         onExited: exitCode => {
             dgopAvailable = (exitCode === 0);
diff --git a/quickshell/Services/MuxService.qml b/quickshell/Services/MuxService.qml
index 04347cea..0591dc78 100644
--- a/quickshell/Services/MuxService.qml
+++ b/quickshell/Services/MuxService.qml
@@ -47,7 +47,7 @@ Singleton {
 
     Process {
         id: tmuxCheckProcess
-        command: ["which", "tmux"]
+        command: ["sh", "-c", "command -v tmux"]
         running: false
         onExited: code => {
             root.tmuxAvailable = (code === 0);
@@ -56,7 +56,7 @@ Singleton {
 
     Process {
         id: zellijCheckProcess
-        command: ["which", "zellij"]
+        command: ["sh", "-c", "command -v zellij"]
         running: false
         onExited: code => {
             root.zellijAvailable = (code === 0);
diff --git a/quickshell/Services/SessionService.qml b/quickshell/Services/SessionService.qml
index 83c78965..e21af8d6 100644
--- a/quickshell/Services/SessionService.qml
+++ b/quickshell/Services/SessionService.qml
@@ -71,7 +71,7 @@ Singleton {
     Process {
         id: detectUwsmProcess
         running: false
-        command: ["which", "uwsm"]
+        command: ["sh", "-c", "command -v uwsm"]
 
         onExited: function (exitCode) {
             hasUwsm = (exitCode === 0);
@@ -123,7 +123,7 @@ Singleton {
     Process {
         id: detectWtypeProcess
         running: false
-        command: ["which", "wtype"]
+        command: ["sh", "-c", "command -v wtype"]
         onExited: exitCode => {
             wtypeAvailable = (exitCode === 0);
         }
@@ -132,7 +132,7 @@ Singleton {
     Process {
         id: detectPrimeRunProcess
         running: false
-        command: ["which", "prime-run"]
+        command: ["sh", "-c", "command -v prime-run"]
 
         onExited: function (exitCode) {
             if (exitCode === 0) {
@@ -146,7 +146,7 @@ Singleton {
     Process {
         id: detectNvidiaOffloadProcess
         running: false
-        command: ["which", "nvidia-offload"]
+        command: ["sh", "-c", "command -v nvidia-offload"]
 
         onExited: function (exitCode) {
             if (exitCode === 0) {