diff --git a/keyserver/Dockerfile b/keyserver/Dockerfile
index 2f573f53f7..6f3a1ed591 100644
--- a/keyserver/Dockerfile
+++ b/keyserver/Dockerfile
@@ -88,7 +88,7 @@ RUN mkdir /home/comm/backups
 
 # Install Rust and add Cargo's bin directory to the $PATH environment variable
 RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y \
-  --default-toolchain 1.76
+  --default-toolchain 1.81
 ENV PATH /home/comm/.cargo/bin:$PATH
 
 #-------------------------------------------------------------------------------
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index af663bde66..6f4d5bc316 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,3 +1,3 @@
 [toolchain]
-channel = "1.76"
+channel = "1.81"
 profile = "default"
diff --git a/services/backup/Dockerfile b/services/backup/Dockerfile
index ebc8004d3c..de20c2d1c2 100644
--- a/services/backup/Dockerfile
+++ b/services/backup/Dockerfile
@@ -1,4 +1,4 @@
-FROM rust:1.76-bullseye as builder
+FROM rust:1.81-bullseye as builder
 
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
   build-essential cmake git libgtest-dev libssl-dev zlib1g-dev \
diff --git a/services/blob/Dockerfile b/services/blob/Dockerfile
index 18735a8180..9d682ec31d 100644
--- a/services/blob/Dockerfile
+++ b/services/blob/Dockerfile
@@ -1,4 +1,4 @@
-FROM rust:1.76-bullseye as builder
+FROM rust:1.81-bullseye as builder
 
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
   build-essential cmake git libgtest-dev libssl-dev zlib1g-dev \
diff --git a/services/commtest/Dockerfile b/services/commtest/Dockerfile
index c6138d1db4..d8c576d642 100644
--- a/services/commtest/Dockerfile
+++ b/services/commtest/Dockerfile
@@ -1,4 +1,4 @@
-FROM rust:1.76-bullseye
+FROM rust:1.81-bullseye
 
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
   build-essential cmake git libgtest-dev libssl-dev zlib1g-dev \
diff --git a/services/feature-flags/Dockerfile b/services/feature-flags/Dockerfile
index 198fc35e1e..1bc1ff9a88 100644
--- a/services/feature-flags/Dockerfile
+++ b/services/feature-flags/Dockerfile
@@ -1,4 +1,4 @@
-FROM rust:1.76-bullseye as builder
+FROM rust:1.81-bullseye as builder
 
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
   build-essential cmake git libgtest-dev libssl-dev zlib1g-dev \
diff --git a/services/identity/Dockerfile b/services/identity/Dockerfile
index 6073c91d99..ee5c3ac852 100644
--- a/services/identity/Dockerfile
+++ b/services/identity/Dockerfile
@@ -1,4 +1,4 @@
-FROM rust:1.76-bullseye as builder
+FROM rust:1.81-bullseye as builder
 
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
   build-essential cmake git libgtest-dev libssl-dev zlib1g-dev \
diff --git a/services/reports/Dockerfile b/services/reports/Dockerfile
index 2d80bebb4f..eccc11d72b 100644
--- a/services/reports/Dockerfile
+++ b/services/reports/Dockerfile
@@ -1,4 +1,4 @@
-FROM rust:1.76-bullseye as builder
+FROM rust:1.81-bullseye as builder
 
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
   build-essential cmake git libgtest-dev libssl-dev zlib1g-dev \
diff --git a/services/search-index-lambda/Cargo.lock b/services/search-index-lambda/Cargo.lock
index b2410ffa52..a5c2e7c0b5 100644
--- a/services/search-index-lambda/Cargo.lock
+++ b/services/search-index-lambda/Cargo.lock
@@ -807,6 +807,12 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "num-conv"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "51d515d32fb182ee37cda2ccdcb92950d6a3c2893aa280e540671c2cd0f3b1d9"
+
 [[package]]
 name = "num-integer"
 version = "0.1.45"
@@ -1387,12 +1393,13 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.3.30"
+version = "0.3.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c4a34ab300f2dee6e562c10a046fc05e358b29f9bf92277f30c3c8d82275f6f5"
+checksum = "5dfd88e563464686c916c7e46e623e520ddc6d79fa6641390f2e3fa86e83e885"
 dependencies = [
  "deranged",
  "itoa",
+ "num-conv",
  "powerfmt",
  "serde",
  "time-core",
@@ -1407,10 +1414,11 @@ checksum = "ef927ca75afb808a4d64dd374f00a2adf8d0fcff8e7b184af886c3c87ec4a3f3"
 
 [[package]]
 name = "time-macros"
-version = "0.2.15"
+version = "0.2.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ad70d68dba9e1f8aceda7aa6711965dfec1cac869f311a51bd08b3a2ccbce20"
+checksum = "3f252a68540fde3a3877aeea552b832b40ab9a69e318efd078774a01ddee1ccf"
 dependencies = [
+ "num-conv",
  "time-core",
 ]
 
diff --git a/services/tunnelbroker/Dockerfile b/services/tunnelbroker/Dockerfile
index 7191452cfb..27f35812cd 100644
--- a/services/tunnelbroker/Dockerfile
+++ b/services/tunnelbroker/Dockerfile
@@ -1,4 +1,4 @@
-FROM rust:1.76-bullseye as builder
+FROM rust:1.81-bullseye as builder
 
 RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
   build-essential cmake git libgtest-dev libssl-dev zlib1g-dev \