diff --git a/lib/commands/command-help.bash b/lib/commands/command-help.bash
index cce31171..00d96a57 100644
--- a/lib/commands/command-help.bash
+++ b/lib/commands/command-help.bash
@@ -94,18 +94,18 @@ print_plugin_help() {
 
   # Eventually @jthegedus or someone else will format the output from these
   # scripts in a certain way.
-  bash "${plugin_path}"/bin/help.overview
+  "${plugin_path}"/bin/help.overview
 
   if [ -f "${plugin_path}"/bin/help.deps ]; then
-    bash "${plugin_path}"/bin/help.deps
+    "${plugin_path}"/bin/help.deps
   fi
 
   if [ -f "${plugin_path}"/bin/help.config ]; then
-    bash "${plugin_path}"/bin/help.config
+    "${plugin_path}"/bin/help.config
   fi
 
   if [ -f "${plugin_path}"/bin/help.links ]; then
-    bash "${plugin_path}"/bin/help.links
+    "${plugin_path}"/bin/help.links
   fi
 }
 
diff --git a/lib/commands/command-install.bash b/lib/commands/command-install.bash
index 89163419..a8c769f0 100644
--- a/lib/commands/command-install.bash
+++ b/lib/commands/command-install.bash
@@ -169,7 +169,7 @@ install_tool_version() {
         export ASDF_DOWNLOAD_PATH=$download_path
         mkdir "$download_path"
         asdf_run_hook "pre_asdf_download_${plugin_name}" "$full_version"
-        bash "${plugin_path}"/bin/download
+        "${plugin_path}"/bin/download
       )
     fi
 
@@ -188,7 +188,7 @@ install_tool_version() {
         export ASDF_CONCURRENCY=$concurrency
         mkdir "$install_path"
         asdf_run_hook "pre_asdf_install_${plugin_name}" "$full_version"
-        bash "${plugin_path}"/bin/install
+        "${plugin_path}"/bin/install
       )
     fi
 
diff --git a/lib/commands/command-latest.bash b/lib/commands/command-latest.bash
index f08cdcc4..94026184 100644
--- a/lib/commands/command-latest.bash
+++ b/lib/commands/command-latest.bash
@@ -15,7 +15,7 @@ latest_command() {
   local versions
 
   if [ -f "${plugin_path}/bin/latest-stable" ]; then
-    versions=$(bash "${plugin_path}"/bin/latest-stable "$query")
+    versions=$("${plugin_path}"/bin/latest-stable "$query")
     if [ -z "${versions}" ]; then
       # this branch requires this print to mimic the error from the list-all branch
       printf "No compatible versions available (%s %s)\n" "$plugin_name" "$query" >&2
diff --git a/lib/commands/command-list-all.bash b/lib/commands/command-list-all.bash
index e3e23d18..f0357a36 100644
--- a/lib/commands/command-list-all.bash
+++ b/lib/commands/command-list-all.bash
@@ -13,7 +13,7 @@ list_all_command() {
   # Capture return code to allow error handling
   std_out_file="$(mktemp "/tmp/asdf-command-list-all-${plugin_name}.stdout.XXXXXX")"
   std_err_file="$(mktemp "/tmp/asdf-command-list-all-${plugin_name}.stderr.XXXXXX")"
-  return_code=0 && bash "${plugin_path}/bin/list-all" >"$std_out_file" 2>"$std_err_file" || return_code=$?
+  return_code=0 && "${plugin_path}/bin/list-all" >"$std_out_file" 2>"$std_err_file" || return_code=$?
 
   if [[ $return_code -ne 0 ]]; then
     # Printing all output to allow plugin to handle error formatting
diff --git a/lib/commands/command-plugin-add.bash b/lib/commands/command-plugin-add.bash
index 09b05e56..afc1caf7 100644
--- a/lib/commands/command-plugin-add.bash
+++ b/lib/commands/command-plugin-add.bash
@@ -41,7 +41,7 @@ plugin_add_command() {
       (
         export ASDF_PLUGIN_SOURCE_URL=$source_url
         export ASDF_PLUGIN_PATH=$plugin_path
-        bash "${plugin_path}/bin/post-plugin-add"
+        "${plugin_path}/bin/post-plugin-add"
       )
     fi
 
diff --git a/lib/commands/command-plugin-remove.bash b/lib/commands/command-plugin-remove.bash
index 90df543f..e4cee053 100644
--- a/lib/commands/command-plugin-remove.bash
+++ b/lib/commands/command-plugin-remove.bash
@@ -13,7 +13,7 @@ plugin_remove_command() {
   if [ -f "${plugin_path}/bin/pre-plugin-remove" ]; then
     (
       export ASDF_PLUGIN_PATH=$plugin_path
-      bash "${plugin_path}/bin/pre-plugin-remove"
+      "${plugin_path}/bin/pre-plugin-remove"
     )
   fi
 
diff --git a/lib/commands/command-uninstall.bash b/lib/commands/command-uninstall.bash
index 37ae44dd..2e1774f9 100644
--- a/lib/commands/command-uninstall.bash
+++ b/lib/commands/command-uninstall.bash
@@ -36,7 +36,7 @@ uninstall_command() {
       export ASDF_INSTALL_TYPE=$install_type
       export ASDF_INSTALL_VERSION=$version
       export ASDF_INSTALL_PATH=$install_path
-      bash "${plugin_path}/bin/uninstall"
+      "${plugin_path}/bin/uninstall"
     )
   else
     rm -rf "$install_path"
diff --git a/lib/utils.bash b/lib/utils.bash
index 721f9da9..ce6aa0b9 100644
--- a/lib/utils.bash
+++ b/lib/utils.bash
@@ -198,7 +198,7 @@ find_versions() {
   local legacy_filenames=""
 
   if [ "$legacy_config" = "yes" ] && [ -f "$legacy_list_filenames_script" ]; then
-    legacy_filenames=$(bash "$legacy_list_filenames_script")
+    legacy_filenames=$($legacy_list_filenames_script)
   fi
 
   while [ "$search_path" != "/" ]; do
@@ -329,7 +329,7 @@ parse_legacy_version_file() {
 
   if [ -f "$file_path" ]; then
     if [ -f "$parse_legacy_script" ]; then
-      bash "$parse_legacy_script" "$file_path"
+      "$parse_legacy_script" "$file_path"
     else
       cat "$file_path"
     fi
@@ -481,7 +481,7 @@ list_plugin_bin_paths() {
       export ASDF_INSTALL_TYPE=$install_type
       export ASDF_INSTALL_VERSION=$version
       export ASDF_INSTALL_PATH=$install_path
-      bash "${plugin_path}/bin/list-bin-paths"
+      "${plugin_path}/bin/list-bin-paths"
     )
   else
     local space_separated_list_of_bin_paths="bin"
diff --git a/test/fixtures/dummy_broken_plugin/bin/install b/test/fixtures/dummy_broken_plugin/bin/install
old mode 100644
new mode 100755
diff --git a/test/fixtures/dummy_broken_plugin/bin/list-all b/test/fixtures/dummy_broken_plugin/bin/list-all
old mode 100644
new mode 100755
diff --git a/test/fixtures/dummy_legacy_plugin/bin/install b/test/fixtures/dummy_legacy_plugin/bin/install
old mode 100644
new mode 100755
diff --git a/test/fixtures/dummy_legacy_plugin/bin/list-all b/test/fixtures/dummy_legacy_plugin/bin/list-all
old mode 100644
new mode 100755
diff --git a/test/fixtures/dummy_legacy_plugin/bin/list-legacy-filenames b/test/fixtures/dummy_legacy_plugin/bin/list-legacy-filenames
old mode 100644
new mode 100755
diff --git a/test/fixtures/dummy_legacy_plugin/bin/parse-legacy-file b/test/fixtures/dummy_legacy_plugin/bin/parse-legacy-file
old mode 100644
new mode 100755
diff --git a/test/fixtures/dummy_plugin/bin/help.overview b/test/fixtures/dummy_plugin/bin/help.overview
old mode 100644
new mode 100755
diff --git a/test/fixtures/dummy_plugin/bin/install b/test/fixtures/dummy_plugin/bin/install
old mode 100644
new mode 100755
diff --git a/test/fixtures/dummy_plugin/bin/list-all b/test/fixtures/dummy_plugin/bin/list-all
old mode 100644
new mode 100755
diff --git a/test/fixtures/dummy_plugin/bin/list-legacy-filenames b/test/fixtures/dummy_plugin/bin/list-legacy-filenames
old mode 100644
new mode 100755
diff --git a/test/fixtures/dummy_plugin/bin/parse-legacy-file b/test/fixtures/dummy_plugin/bin/parse-legacy-file
old mode 100644
new mode 100755
diff --git a/test/fixtures/dummy_plugin/bin/post-plugin-add b/test/fixtures/dummy_plugin/bin/post-plugin-add
old mode 100644
new mode 100755
diff --git a/test/fixtures/dummy_plugin/bin/pre-plugin-remove b/test/fixtures/dummy_plugin/bin/pre-plugin-remove
old mode 100644
new mode 100755