diff --git a/Cargo.toml b/Cargo.toml
index d956113951..1947110d51 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -66,7 +66,6 @@ version = "0.1.0-alpha.2"
 
 [dev-dependencies]
 lm3s6965 = "0.1.3"
-panic-halt = "0.2.0"
 cortex-m-semihosting = "0.3.3"
 
 [dev-dependencies.panic-semihosting]
diff --git a/examples/not-send.rs b/examples/not-send.rs
index 16a874dc0f..2c5c6dc8a0 100644
--- a/examples/not-send.rs
+++ b/examples/not-send.rs
@@ -8,7 +8,7 @@
 use core::marker::PhantomData;
 
 use cortex_m_semihosting::debug;
-use panic_halt as _;
+use panic_semihosting as _;
 use rtic::app;
 
 pub struct NotSend {
diff --git a/examples/not-sync.rs b/examples/not-sync.rs
index a7eaac8e7f..fbc76472f0 100644
--- a/examples/not-sync.rs
+++ b/examples/not-sync.rs
@@ -8,7 +8,7 @@
 use core::marker::PhantomData;
 
 use cortex_m_semihosting::debug;
-use panic_halt as _;
+use panic_semihosting as _;
 
 pub struct NotSync {
     _0: PhantomData<*const ()>,
diff --git a/examples/schedule.rs b/examples/schedule.rs
index 70a7a5e328..be86c387a3 100644
--- a/examples/schedule.rs
+++ b/examples/schedule.rs
@@ -7,7 +7,7 @@
 
 use cortex_m::peripheral::DWT;
 use cortex_m_semihosting::hprintln;
-use panic_halt as _;
+use panic_semihosting as _;
 use rtic::cyccnt::{Instant, U32Ext as _};
 
 // NOTE: does NOT work on QEMU!
diff --git a/examples/shared-with-init.rs b/examples/shared-with-init.rs
index bd55f7efd5..153a8eaefd 100644
--- a/examples/shared-with-init.rs
+++ b/examples/shared-with-init.rs
@@ -7,7 +7,7 @@
 
 use cortex_m_semihosting::debug;
 use lm3s6965::Interrupt;
-use panic_halt as _;
+use panic_semihosting as _;
 use rtic::app;
 
 pub struct MustBeSend;
diff --git a/examples/t-binds.rs b/examples/t-binds.rs
index 588ac46fa6..5dcec492f3 100644
--- a/examples/t-binds.rs
+++ b/examples/t-binds.rs
@@ -5,7 +5,7 @@
 #![no_main]
 #![no_std]
 
-use panic_halt as _;
+use panic_semihosting as _;
 
 #[rtic::app(device = lm3s6965)]
 const APP: () = {
diff --git a/examples/t-cfg-resources.rs b/examples/t-cfg-resources.rs
index eb00fe5923..94ca938e86 100644
--- a/examples/t-cfg-resources.rs
+++ b/examples/t-cfg-resources.rs
@@ -3,7 +3,7 @@
 #![no_main]
 #![no_std]
 
-use panic_halt as _;
+use panic_semihosting as _;
 
 #[rtic::app(device = lm3s6965)]
 const APP: () = {
diff --git a/examples/t-cfg.rs b/examples/t-cfg.rs
index 52e6d1c9d3..7b98547ba4 100644
--- a/examples/t-cfg.rs
+++ b/examples/t-cfg.rs
@@ -3,7 +3,7 @@
 #![no_main]
 #![no_std]
 
-use panic_halt as _;
+use panic_semihosting as _;
 
 #[rtic::app(device = lm3s6965, monotonic = rtic::cyccnt::CYCCNT)]
 const APP: () = {
diff --git a/examples/t-late-not-send.rs b/examples/t-late-not-send.rs
index c464e73b64..8b2aa5f94f 100644
--- a/examples/t-late-not-send.rs
+++ b/examples/t-late-not-send.rs
@@ -5,7 +5,7 @@
 
 use core::marker::PhantomData;
 
-use panic_halt as _;
+use panic_semihosting as _;
 
 pub struct NotSend {
     _0: PhantomData<*const ()>,
diff --git a/examples/t-resource.rs b/examples/t-resource.rs
index 53665dc933..0a0fadfbcb 100644
--- a/examples/t-resource.rs
+++ b/examples/t-resource.rs
@@ -5,7 +5,7 @@
 #![no_main]
 #![no_std]
 
-use panic_halt as _;
+use panic_semihosting as _;
 
 #[rtic::app(device = lm3s6965)]
 const APP: () = {
diff --git a/examples/t-schedule.rs b/examples/t-schedule.rs
index 4a23182273..bc4fccce90 100644
--- a/examples/t-schedule.rs
+++ b/examples/t-schedule.rs
@@ -5,7 +5,7 @@
 #![no_main]
 #![no_std]
 
-use panic_halt as _;
+use panic_semihosting as _;
 use rtic::cyccnt::{Instant, U32Ext as _};
 
 #[rtic::app(device = lm3s6965, monotonic = rtic::cyccnt::CYCCNT)]
diff --git a/examples/t-spawn.rs b/examples/t-spawn.rs
index 2d941b1567..a75a6e916d 100644
--- a/examples/t-spawn.rs
+++ b/examples/t-spawn.rs
@@ -5,7 +5,7 @@
 #![no_main]
 #![no_std]
 
-use panic_halt as _;
+use panic_semihosting as _;
 
 #[rtic::app(device = lm3s6965)]
 const APP: () = {
diff --git a/ui/single/locals-cfg.stderr b/ui/single/locals-cfg.stderr
index bb558fa60e..8c01407115 100644
--- a/ui/single/locals-cfg.stderr
+++ b/ui/single/locals-cfg.stderr
@@ -27,11 +27,3 @@ error[E0425]: cannot find value `FOO` in this scope
    |
 44 |         FOO;
    |         ^^^ not found in this scope
-
-error: duplicate lang item in crate `panic_halt`: `panic_impl`.
-  |
-  = note: first defined in crate `std`.
-
-error: duplicate lang item in crate `panic_semihosting`: `panic_impl`.
-  |
-  = note: first defined in crate `panic_halt`.
diff --git a/ui/single/task-priority-too-high.rs b/ui/single/task-priority-too-high.rs
index 539c3f5d0e..76c0a9727b 100644
--- a/ui/single/task-priority-too-high.rs
+++ b/ui/single/task-priority-too-high.rs
@@ -1,7 +1,5 @@
 #![no_main]
 
-use rtic::app;
-
 #[rtic::app(device = lm3s6965)]
 const APP: () = {
     #[init]
diff --git a/ui/single/task-priority-too-high.stderr b/ui/single/task-priority-too-high.stderr
index eae6074df9..4434995b01 100644
--- a/ui/single/task-priority-too-high.stderr
+++ b/ui/single/task-priority-too-high.stderr
@@ -1,13 +1,5 @@
-warning: unused import: `rtic::app`
- --> $DIR/task-priority-too-high.rs:3:5
-  |
-3 | use rtic::app;
-  |     ^^^^^^^^^
-  |
-  = note: #[warn(unused_imports)] on by default
-
 error[E0080]: evaluation of constant value failed
- --> $DIR/task-priority-too-high.rs:5:1
+ --> $DIR/task-priority-too-high.rs:3:1
   |
-5 | #[rtic::app(device = lm3s6965)]
+3 | #[rtic::app(device = lm3s6965)]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ attempt to subtract with overflow