diff --git a/embassy-stm32/src/rcc/mod.rs b/embassy-stm32/src/rcc/mod.rs
index cfa9444a..9c8da4a9 100644
--- a/embassy-stm32/src/rcc/mod.rs
+++ b/embassy-stm32/src/rcc/mod.rs
@@ -10,6 +10,8 @@ pub struct Clocks {
     pub sys: Hertz,
     pub apb1: Hertz,
     pub apb2: Hertz,
+    #[cfg(rcc_wl5)]
+    pub apb3: Hertz,
 
     pub apb1_tim: Hertz,
     pub apb2_tim: Hertz,
diff --git a/embassy-stm32/src/rcc/wl5x/mod.rs b/embassy-stm32/src/rcc/wl5x/mod.rs
index 72caad2e..e1e001c7 100644
--- a/embassy-stm32/src/rcc/wl5x/mod.rs
+++ b/embassy-stm32/src/rcc/wl5x/mod.rs
@@ -190,6 +190,9 @@ impl RccExt for RCC {
             }
         };
 
+        // TODO: completely untested
+        let apb3_freq = ahb_freq;
+
         Clocks {
             sys: sys_clk.hz(),
             ahb1: ahb_freq.hz(),
@@ -197,6 +200,7 @@ impl RccExt for RCC {
             ahb3: ahb_freq.hz(),
             apb1: apb1_freq.hz(),
             apb2: apb2_freq.hz(),
+            apb3: apb3_freq.hz(),
             apb1_tim: apb1_tim_freq.hz(),
             apb2_tim: apb2_tim_freq.hz(),
         }
diff --git a/examples/stm32wl55/Cargo.toml b/examples/stm32wl55/Cargo.toml
index ebbe8b84..a7313e33 100644
--- a/examples/stm32wl55/Cargo.toml
+++ b/examples/stm32wl55/Cargo.toml
@@ -26,7 +26,7 @@ defmt = "0.2.0"
 defmt-rtt = "0.2.0"
 
 cortex-m = "0.7.1"
-cortex-m-rt = "0.6.14"
+cortex-m-rt = "0.7.0"
 embedded-hal = { version = "0.2.4" }
 panic-probe = { version = "0.2.0", features= ["print-defmt"] }
 futures = { version = "0.3.8", default-features = false, features = ["async-await"] }
diff --git a/stm32-data b/stm32-data
index f56c24e9..d3c03a41 160000
--- a/stm32-data
+++ b/stm32-data
@@ -1 +1 @@
-Subproject commit f56c24e9995fd7ff1182d936073f1fd4fde32832
+Subproject commit d3c03a41de925d07e26a5f6157eb85307692a651