diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 81dfd02efdd910f6c1132cf43dcea9ccb60d9e81..388800237a87ebfa786132d6ea35dafc691739bc 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -109,7 +109,6 @@ rust-stable-armv7:
   before_script:
     - *before_script_start
     - cat .ci/snippet_for_cross_compilation_config.toml >> .cargo/config.toml
-    - rm rust-toolchain
     - *before_script_end
   script:
     - cargo test
@@ -195,8 +194,7 @@ windows-msvc-32:
   before_script:
     # We don't call *before_script_start or *before_script_end as we
     # don't have bash, clang, etc.
-    - rm rust-toolchain
-    - rustup default 1.56.0-x86_64-pc-windows-msvc
+    - rustup default 1.60.0-x86_64-pc-windows-msvc
     - rustup target add i686-pc-windows-msvc
     - rustup show
     - rustc --version --verbose
diff --git a/Cargo.toml b/Cargo.toml
index b0283767ee18aecec1c5991b7c532bebb68c3c10..dc89021e8d5230a587903633c9453f9d5412563d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,6 +10,7 @@ keywords = ["cryptography", "openpgp", "pgp", "encryption", "signing"]
 categories = ["cryptography", "authentication", "email"]
 license = "GPL-3.0-or-later"
 edition = "2018"
+rust-version = "1.60"
 
 [badges]
 maintenance = { status = "actively-developed" }
diff --git a/README.md b/README.md
index e6080a5a3a7cfa3205992af5f0ead701ac43b21f..6d83905fcfb98ca77c5d8ab30850aae04a76cf34 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ This library provides an implementation of the [p≡p Engine]'s
 Building
 ========
 
-You need at least version 1.48 of `rustc` and `cargo`.
+You need at least version 1.60 of `rustc` and `cargo`.
 
 You can build this library as follows:
 
diff --git a/rust-toolchain b/rust-toolchain
deleted file mode 100644
index 9db5ea12f52279a37e2d5c8280e97f2c9f83aa8a..0000000000000000000000000000000000000000
--- a/rust-toolchain
+++ /dev/null
@@ -1 +0,0 @@
-1.48.0