diff --git a/Sources/ProjectDrivers/BazelProjectDriver.swift b/Sources/ProjectDrivers/BazelProjectDriver.swift
index 1c15d1587..8727554a8 100644
--- a/Sources/ProjectDrivers/BazelProjectDriver.swift
+++ b/Sources/ProjectDrivers/BazelProjectDriver.swift
@@ -123,21 +123,14 @@ public class BazelProjectDriver: ProjectDriver {
 
     private func queryTargets() throws -> [String] {
         try shell
-            .exec(["bazel", "query", query])
+            .exec(["bazel", "query", "\"\(query)\""])
             .split(separator: "\n")
             .map { "\"@@\($0)\"" }
     }
 
     private var query: String {
-        let query = """
-        filter(
-          '^//.*',
-          kind(
-            '(\(Self.topLevelKinds.joined(separator: "|"))) rule',
-            deps(//...)
-          )
-        )
-        """
+        let kinds = Self.topLevelKinds.joined(separator: "|")
+        let query = "filter('^//.*', kind('(\(kinds)) rule', deps(//...)))"
 
         if let pattern = configuration.bazelFilter {
             return "filter('\(pattern)', \(query))"
diff --git a/Sources/Shared/PeripheryError.swift b/Sources/Shared/PeripheryError.swift
index 56d9bc3ae..79e655e7b 100644
--- a/Sources/Shared/PeripheryError.swift
+++ b/Sources/Shared/PeripheryError.swift
@@ -3,7 +3,7 @@ import SystemPackage
 
 public enum PeripheryError: Error, LocalizedError, CustomStringConvertible {
     case shellCommandFailed(cmd: [String], status: Int32, output: String)
-    case shellOutputEncodingFailed(cmd: String, args: [String], encoding: String.Encoding)
+    case shellOutputEncodingFailed(cmd: [String], encoding: String.Encoding)
     case usageError(String)
     case underlyingError(Error)
     case invalidScheme(name: String, project: String)
@@ -25,9 +25,9 @@ public enum PeripheryError: Error, LocalizedError, CustomStringConvertible {
         case let .shellCommandFailed(cmd, status, output):
             let joinedCmd = cmd.joined(separator: " ")
             return "Shell command '\(joinedCmd)' returned exit status '\(status)':\n\(output)"
-        case let .shellOutputEncodingFailed(cmd, args, encoding):
-            let joinedArgs = args.joined(separator: " ")
-            return "Shell command '\(cmd) \(joinedArgs)' output encoding to \(encoding) failed."
+        case let .shellOutputEncodingFailed(cmd, encoding):
+            let joinedCmd = cmd.joined(separator: " ")
+            return "Shell command '\(joinedCmd)' output encoding to \(encoding) failed."
         case let .usageError(message):
             return message
         case let .underlyingError(error):
diff --git a/Sources/Shared/Shell.swift b/Sources/Shared/Shell.swift
index d9e834732..d7a302e0a 100644
--- a/Sources/Shared/Shell.swift
+++ b/Sources/Shared/Shell.swift
@@ -26,15 +26,9 @@ public class ShellProcessStore {
 }
 
 open class Shell {
-    private let environment: [String: String]
     private let logger: ContextualLogger
 
-    public convenience init(logger: Logger) {
-        self.init(environment: ProcessInfo.processInfo.environment, logger: logger)
-    }
-
-    public required init(environment: [String: String], logger: Logger) {
-        self.environment = environment
+    public required init(logger: Logger) {
         self.logger = logger.contextualized(with: "shell")
     }
 
@@ -62,26 +56,14 @@ open class Shell {
     // MARK: - Private
 
     private func exec(
-        _ args: [String],
+        _ cmd: [String],
         captureOutput: Bool = true
     ) throws -> (Int32, String, String) {
-        let launchPath: String
-        let newArgs: [String]
-
-        if let cmd = args.first, cmd.hasPrefix("/") {
-            launchPath = cmd
-            newArgs = Array(args.dropFirst())
-        } else {
-            launchPath = "/usr/bin/env"
-            newArgs = args
-        }
-
         let process = Process()
-        process.launchPath = launchPath
-        process.environment = environment
-        process.arguments = newArgs
+        process.launchPath = "/bin/bash"
+        process.arguments = ["-c", cmd.joined(separator: " ")]
 
-        logger.debug("\(launchPath) \(newArgs.joined(separator: " "))")
+        logger.debug("\(cmd.joined(separator: " "))")
         ShellProcessStore.shared.add(process)
 
         var stdoutPipe: Pipe?
@@ -104,8 +86,7 @@ open class Shell {
             else {
                 ShellProcessStore.shared.remove(process)
                 throw PeripheryError.shellOutputEncodingFailed(
-                    cmd: launchPath,
-                    args: newArgs,
+                    cmd: cmd,
                     encoding: .utf8
                 )
             }
@@ -117,8 +98,7 @@ open class Shell {
             else {
                 ShellProcessStore.shared.remove(process)
                 throw PeripheryError.shellOutputEncodingFailed(
-                    cmd: launchPath,
-                    args: newArgs,
+                    cmd: cmd,
                     encoding: .utf8
                 )
             }
diff --git a/Sources/XcodeSupport/Xcodebuild.swift b/Sources/XcodeSupport/Xcodebuild.swift
index fb59a86a8..8d098ad09 100644
--- a/Sources/XcodeSupport/Xcodebuild.swift
+++ b/Sources/XcodeSupport/Xcodebuild.swift
@@ -51,8 +51,8 @@ public final class Xcodebuild {
         ]
 
         let quotedArguments = quote(arguments: additionalArguments)
-        let xcodebuild = "xcodebuild \((args + envs + quotedArguments).joined(separator: " "))"
-        return try shell.exec(["/bin/sh", "-c", xcodebuild])
+        let xcodebuild = ["xcodebuild"] + args + envs + quotedArguments
+        return try shell.exec(xcodebuild)
     }
 
     public func removeDerivedData(for project: XcodeProjectlike, allSchemes: [String]) throws {
@@ -85,8 +85,8 @@ public final class Xcodebuild {
         ]
 
         let quotedArguments = quote(arguments: additionalArguments)
-        let xcodebuild = "xcodebuild \((args + quotedArguments).joined(separator: " "))"
-        let lines = try shell.exec(["/bin/sh", "-c", xcodebuild]).split(separator: "\n").map { String($0).trimmed }
+        let xcodebuild = ["xcodebuild"] + args + quotedArguments
+        let lines = try shell.exec(xcodebuild).split(separator: "\n").map { String($0).trimmed }
 
         // xcodebuild may output unrelated warnings, we need to strip them out otherwise
         // JSON parsing will fail.
diff --git a/Tests/XcodeTests/ShellMock.swift b/Tests/XcodeTests/ShellMock.swift
index 8a99a60b7..c3cacb8ba 100644
--- a/Tests/XcodeTests/ShellMock.swift
+++ b/Tests/XcodeTests/ShellMock.swift
@@ -7,7 +7,7 @@ class ShellMock: Shell {
 
     convenience init() {
         let logger = Logger(quiet: true)
-        self.init(environment: ProcessInfo.processInfo.environment, logger: logger)
+        self.init(logger: logger)
     }
 
     override func exec(_: [String]) throws -> String {