diff --git a/.github/build-canary-v3 b/.github/build-canary-v3
index 7ed6ff8..1e8b314 100644
--- a/.github/build-canary-v3
+++ b/.github/build-canary-v3
@@ -1 +1 @@
-5
+6
diff --git a/debian/rules b/debian/rules
index 63811ae..c6b409c 100755
--- a/debian/rules
+++ b/debian/rules
@@ -9,12 +9,10 @@ export PIKA_BUILD_ARCH = $(shell cat pika-build-arch)
 override_dh_prep:
 # amd64 build prep
 ifeq (amd64-v3,$(PIKA_BUILD_ARCH))
-export RUSTFLAGS="-C target-cpu=x86-64-v3 -Clinker-plugin-lto -Copt-level=3"
-BUILDFLAGS := "--release -C target-cpu=x86-64-v3 -Clinker-plugin-lto -Copt-level=3"
-else
-BUILDFLAGS := --release
+export RUSTFLAGS="-C target-cpu=x86-64-v34 -Clinker-plugin-lto -Copt-level=34"
 endif
 
+BUILDFLAGS := --release
 BINARY := wayshot
 TARGET_DIR := $(DESTDIR)/usr/bin
 SOURCE_DIR := ./target/release