diff --git a/CHANGELOG.md b/CHANGELOG.md
index 62eea02..05821b7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
+## [0.12.0]
+
+### Changed
+
+- Update to probe-rs 0.12.0.
+
 ## [0.11.0]
 
 ### Added
@@ -164,7 +170,8 @@ An example is this config:
 ## [0.6.0]
 - Initial release
 
-[Unreleased]: https://github.com/probe-rs/cargo-embed/compare/v0.11.0..master
+[Unreleased]: https://github.com/probe-rs/cargo-embed/compare/v0.12.0..master
+[0.12.0]: https://github.com/probe-rs/cargo-embed/releases/tag/v0.11.0..v0.12.0
 [0.11.0]: https://github.com/probe-rs/cargo-embed/releases/tag/v0.10.1..v0.11.0
 [0.10.1]: https://github.com/probe-rs/cargo-embed/releases/tag/v0.10.0..v0.10.1
 [0.10.0]: https://github.com/probe-rs/cargo-embed/releases/tag/v0.9.0..v0.10.0
diff --git a/Cargo.lock b/Cargo.lock
index 68b97bc..b0bac13 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -287,12 +287,12 @@ dependencies = [
 
 [[package]]
 name = "cargo-embed"
-version = "0.11.0"
+version = "0.12.0"
 dependencies = [
  "anyhow",
  "chrono",
  "colored",
- "crossterm 0.22.1",
+ "crossterm",
  "defmt-decoder",
  "env_logger",
  "figment",
@@ -457,23 +457,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c0ebde6a9dd5e331cd6c6f48253254d117642c31653baa475e394657c59c1f7d"
 dependencies = [
  "bitflags",
- "crossterm_winapi 0.8.0",
- "libc",
- "mio",
- "parking_lot",
- "signal-hook",
- "signal-hook-mio",
- "winapi",
-]
-
-[[package]]
-name = "crossterm"
-version = "0.22.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c85525306c4291d1b73ce93c8acf9c339f9b213aef6c1d85c3830cbf1c16325c"
-dependencies = [
- "bitflags",
- "crossterm_winapi 0.9.0",
+ "crossterm_winapi",
  "libc",
  "mio",
  "parking_lot",
@@ -491,15 +475,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "crossterm_winapi"
-version = "0.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2ae1b35a484aa10e07fe0638d02301c5ad24de82d310ccbd2f3693da5f09bf1c"
-dependencies = [
- "winapi",
-]
-
 [[package]]
 name = "ctor"
 version = "0.1.21"
@@ -797,8 +772,8 @@ dependencies = [
 
 [[package]]
 name = "gdb-server"
-version = "0.11.0"
-source = "git+https://github.com/probe-rs/probe-rs#5e2f6354e2d00b0ffe83682a0fd7f5b7386a21e3"
+version = "0.12.0"
+source = "git+https://github.com/probe-rs/probe-rs#451d9da11924fdd55f1faa5364ee2f2dae1b7254"
 dependencies = [
  "anyhow",
  "async-std",
@@ -837,6 +812,12 @@ name = "gimli"
 version = "0.25.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f0a01e0497841a3b2db4f8afa483cce65f7e96a3498bd6c541734792aeac8fe7"
+
+[[package]]
+name = "gimli"
+version = "0.26.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "78cc372d058dcf6d5ecd98510e7fbc9e5aec4d21de70f65fea8fecebcd881bd4"
 dependencies = [
  "fallible-iterator",
  "stable_deref_trait",
@@ -1116,9 +1097,9 @@ dependencies = [
 
 [[package]]
 name = "jep106"
-version = "0.2.5"
+version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "939876d20519325db0883757e29e9858ee02919d0f03e43c74f69296caa314f4"
+checksum = "e80f965a2a659a7a4d9cdb9821a869d6e33c10f3e094e8f7d01648063c425953"
 dependencies = [
  "serde",
 ]
@@ -1229,9 +1210,9 @@ checksum = "2a60c7ce501c71e03a9c9c0d35b861413ae925bd979cc7a4e30d060069aaac8d"
 
 [[package]]
 name = "minimal-lexical"
-version = "0.1.3"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c835948974f68e0bd58636fc6c5b1fbff7b297e3046f11b3b3c18bbac012c6d"
+checksum = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a"
 
 [[package]]
 name = "miniz_oxide"
@@ -1285,9 +1266,9 @@ dependencies = [
 
 [[package]]
 name = "nom"
-version = "7.0.0"
+version = "7.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7ffd9d26838a953b4af82cbeb9f1592c6798916983959be223a7124e992742c1"
+checksum = "1b1d11e1ef389c76fe5b81bcaf2ea32cf88b62bc494e19f493d0b30e7a930109"
 dependencies = [
  "memchr",
  "minimal-lexical",
@@ -1356,6 +1337,15 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "object"
+version = "0.27.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "67ac1d3f9a1d3616fd9a60c8d74296f22406a238b6a72f5cc1e6f314df4ffbf9"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "once_cell"
 version = "1.8.0"
@@ -1500,8 +1490,8 @@ checksum = "ac74c624d6b2d21f425f752262f42188365d7b8ff1aff74c82e45136510a4857"
 
 [[package]]
 name = "probe-rs"
-version = "0.11.0"
-source = "git+https://github.com/probe-rs/probe-rs#5e2f6354e2d00b0ffe83682a0fd7f5b7386a21e3"
+version = "0.12.0"
+source = "git+https://github.com/probe-rs/probe-rs#451d9da11924fdd55f1faa5364ee2f2dae1b7254"
 dependencies = [
  "anyhow",
  "base64",
@@ -1509,7 +1499,7 @@ dependencies = [
  "bitfield",
  "bitvec",
  "enum-primitive-derive",
- "gimli 0.25.0",
+ "gimli 0.26.1",
  "hidapi",
  "ihex",
  "jaylink",
@@ -1517,7 +1507,7 @@ dependencies = [
  "libftdi1-sys",
  "log",
  "num-traits",
- "object 0.26.2",
+ "object 0.27.1",
  "once_cell",
  "probe-rs-target",
  "rusb",
@@ -1532,8 +1522,8 @@ dependencies = [
 
 [[package]]
 name = "probe-rs-cli-util"
-version = "0.11.0"
-source = "git+https://github.com/probe-rs/probe-rs#5e2f6354e2d00b0ffe83682a0fd7f5b7386a21e3"
+version = "0.12.0"
+source = "git+https://github.com/probe-rs/probe-rs#451d9da11924fdd55f1faa5364ee2f2dae1b7254"
 dependencies = [
  "anyhow",
  "cargo_metadata",
@@ -1555,8 +1545,8 @@ dependencies = [
 
 [[package]]
 name = "probe-rs-rtt"
-version = "0.11.0"
-source = "git+https://github.com/probe-rs/probe-rs-rtt#43b37def680f684fc74f6c78570b40f3f48c607e"
+version = "0.12.0"
+source = "git+https://github.com/probe-rs/probe-rs#451d9da11924fdd55f1faa5364ee2f2dae1b7254"
 dependencies = [
  "log",
  "probe-rs",
@@ -1566,8 +1556,8 @@ dependencies = [
 
 [[package]]
 name = "probe-rs-target"
-version = "0.11.0"
-source = "git+https://github.com/probe-rs/probe-rs#5e2f6354e2d00b0ffe83682a0fd7f5b7386a21e3"
+version = "0.12.0"
+source = "git+https://github.com/probe-rs/probe-rs#451d9da11924fdd55f1faa5364ee2f2dae1b7254"
 dependencies = [
  "base64",
  "jep106",
@@ -2036,9 +2026,9 @@ dependencies = [
 
 [[package]]
 name = "simplelog"
-version = "0.10.0"
+version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "59d0fe306a0ced1c88a58042dc22fc2ddd000982c26d75f6aa09a394547c41e0"
+checksum = "8baa24de25f3092d9697c76f94cf09f67fca13db2ea11ce80c2f055c1aaf0795"
 dependencies = [
  "chrono",
  "log",
@@ -2331,7 +2321,7 @@ checksum = "39c8ce4e27049eed97cfa363a5048b09d995e209994634a0efc26a14ab6c0c23"
 dependencies = [
  "bitflags",
  "cassowary",
- "crossterm 0.20.0",
+ "crossterm",
  "unicode-segmentation",
  "unicode-width",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 3ce5ce1..fae544d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cargo-embed"
-version = "0.11.0"
+version = "0.12.0"
 authors = ["Noah Hüsser <yatekii@yatekii.ch>"]
 edition = "2018"
 description = "A utility to develop software for embedded ARM and RISC-V cores."
@@ -18,9 +18,10 @@ ftdi = ["probe-rs/ftdi"]
 sentry = ["probe-rs-cli-util/sentry"]
 
 [dependencies]
-probe-rs = { version = "0.11.0", git = "https://github.com/probe-rs/probe-rs" }
-gdb-server = { version = "0.11.0", git = "https://github.com/probe-rs/probe-rs"  }
-probe-rs-cli-util = { version = "0.11.0", git = "https://github.com/probe-rs/probe-rs", default-features = false, features=["anyhow"] }
+probe-rs = { version = "0.12.0", git = "https://github.com/probe-rs/probe-rs" }
+gdb-server = { version = "0.12.0", git = "https://github.com/probe-rs/probe-rs"  }
+probe-rs-cli-util = { version = "0.12.0", git = "https://github.com/probe-rs/probe-rs", default-features = false, features=["anyhow"] }
+probe-rs-rtt = { version = "0.12.0", git = "https://github.com/probe-rs/probe-rs" }
 
 structopt = "0.3.25"
 git-version = "0.3.5"
@@ -31,7 +32,6 @@ colored = "2.0.0"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = { version = "1.0.71" }
 figment = { version = "0.10", features = ["toml", "json", "yaml", "env"] }
-probe-rs-rtt = { version = "0.11.0", git = "https://github.com/probe-rs/probe-rs-rtt" }
 chrono = "0.4"
 crossterm = "<= 0.22.2"
 goblin = "0.4.2"
diff --git a/src/main.rs b/src/main.rs
index 6d7bfbf..ca1c81b 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -529,8 +529,14 @@ fn main_try() -> Result<()> {
                 ScanRegion::Ram
             };
 
-            match Rtt::attach_region(session.clone(), &rtt_header_address) {
+            let mut session_handle = session.lock().unwrap();
+            let memory_map = session_handle.target().memory_map.clone();
+            let mut core = session_handle.core(0)?;
+
+            match Rtt::attach_region(&mut core, &memory_map, &rtt_header_address) {
                 Ok(rtt) => {
+                    drop(core);
+                    drop(session_handle);
                     log::info!("RTT initialized.");
 
                     // `App` puts the terminal into a special state, as required
@@ -553,9 +559,11 @@ fn main_try() -> Result<()> {
                     let logname = format!("{}_{}_{}", name, chip_name, Local::now().to_rfc3339());
                     let mut app = rttui::app::App::new(rtt, &config, logname)?;
                     loop {
-                        app.poll_rtt();
+                        let mut session_handle = session.lock().unwrap();
+                        let mut core = session_handle.core(0)?;
+                        app.poll_rtt(&mut core);
                         app.render(&defmt_state);
-                        if app.handle_event() {
+                        if app.handle_event(&mut core) {
                             logging::println("Shutting down.");
                             return Ok(());
                         };
diff --git a/src/rttui/app.rs b/src/rttui/app.rs
index 7a5b7ed..54778c2 100644
--- a/src/rttui/app.rs
+++ b/src/rttui/app.rs
@@ -3,8 +3,8 @@ use crossterm::{
     event::{self, KeyCode},
     execute,
     terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen},
-    ExecutableCommand,
 };
+use probe_rs::Core;
 use probe_rs_rtt::RttChannel;
 use std::{fmt::write, path::PathBuf, sync::mpsc::RecvTimeoutError};
 use std::{
@@ -25,7 +25,7 @@ use super::{
     event::Events,
 };
 
-use event::{DisableMouseCapture, KeyModifiers};
+use event::KeyModifiers;
 
 /// App holds the state of the application
 pub struct App {
@@ -141,7 +141,7 @@ impl App {
         if file.read_to_end(&mut buffer).is_ok() {
             if let Ok(binary) = goblin::elf::Elf::parse(buffer.as_slice()) {
                 for sym in &binary.syms {
-                    if let Some(Ok(name)) = binary.strtab.get(sym.st_name) {
+                    if let Some(name) = binary.strtab.get_at(sym.st_name) {
                         if name == "_SEGGER_RTT" {
                             return Some(sym.st_value);
                         }
@@ -359,7 +359,7 @@ impl App {
     }
 
     /// Returns true if the application should exit.
-    pub fn handle_event(&mut self) -> bool {
+    pub fn handle_event(&mut self, core: &mut Core) -> bool {
         match self.events.next(Duration::from_millis(10)) {
             Ok(event) => match event.code {
                 KeyCode::Char('c') if event.modifiers.contains(KeyModifiers::CONTROL) => {
@@ -436,7 +436,7 @@ impl App {
                     false
                 }
                 KeyCode::Enter => {
-                    self.push_rtt();
+                    self.push_rtt(core);
                     false
                 }
                 KeyCode::Char(c) => {
@@ -475,14 +475,14 @@ impl App {
     }
 
     /// Polls the RTT target for new data on all channels.
-    pub fn poll_rtt(&mut self) {
+    pub fn poll_rtt(&mut self, core: &mut Core) {
         for channel in self.tabs.iter_mut() {
-            channel.poll_rtt();
+            channel.poll_rtt(core);
         }
     }
 
-    pub fn push_rtt(&mut self) {
-        self.tabs[self.current_tab].push_rtt();
+    pub fn push_rtt(&mut self, core: &mut Core) {
+        self.tabs[self.current_tab].push_rtt(core);
     }
 }
 
diff --git a/src/rttui/channel.rs b/src/rttui/channel.rs
index 74f1db6..70c9c32 100644
--- a/src/rttui/channel.rs
+++ b/src/rttui/channel.rs
@@ -1,6 +1,7 @@
 use std::fmt;
 
 use chrono::Local;
+use probe_rs::Core;
 use probe_rs_rtt::{DownChannel, UpChannel};
 
 #[derive(Debug, Copy, Clone, PartialEq, serde::Serialize, serde::Deserialize)]
@@ -117,10 +118,10 @@ impl ChannelState {
     /// Polls the RTT target for new data on the specified channel.
     ///
     /// Processes all the new data and adds it to the linebuffer of the respective channel.
-    pub fn poll_rtt(&mut self) {
+    pub fn poll_rtt(&mut self, core: &mut Core) {
         // TODO: Proper error handling.
         let count = if let Some(channel) = self.up_channel.as_mut() {
-            match channel.read(self.rtt_buffer.0.as_mut()) {
+            match channel.read(core, self.rtt_buffer.0.as_mut()) {
                 Ok(count) => count,
                 Err(err) => {
                     log::error!("\nError reading from RTT: {}", err);
@@ -176,10 +177,10 @@ impl ChannelState {
         };
     }
 
-    pub fn push_rtt(&mut self) {
+    pub fn push_rtt(&mut self, core: &mut Core) {
         if let Some(down_channel) = self.down_channel.as_mut() {
             self.input += "\n";
-            down_channel.write(self.input.as_bytes()).unwrap();
+            down_channel.write(core, self.input.as_bytes()).unwrap();
             self.input.clear();
         }
     }