diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index d3c34d3ad..9156b0605 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -22,7 +22,7 @@ jobs:
       matrix:
         rust:
           - name: MSRV
-            toolchain: "1.60"
+            toolchain: "1.70"
             nightly: false
           - name: Stable
             toolchain: stable
@@ -57,7 +57,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: "1.68"
+          toolchain: "1.78"
         id: rust-toolchain
       - uses: actions/cache@v4
         with:
@@ -74,7 +74,7 @@ jobs:
       matrix:
         rust:
           - name: MSRV
-            toolchain: "1.60"
+            toolchain: "1.70"
             nightly: false
           - name: Nightly
             toolchain: nightly
@@ -144,7 +144,7 @@ jobs:
           	--workspace \
           	--all-features \
           	--exclude-files 'derive/*' \
-            --exclude-files 'serde/*' \
+          	--exclude-files 'serde/*' \
           	--exclude-files 'target/*' \
           	--ignore-panics --ignore-tests \
           	--out html --out json \
diff --git a/Cargo.toml b/Cargo.toml
index 3d07a19c5..f71655529 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,7 +8,7 @@ name = "openapi_type"
 version = "0.4.3"
 authors = ["Dominic Meiser <git@msrd0.de>"]
 edition = "2021"
-rust-version = "1.60"
+rust-version = "1.70"
 description = "OpenAPI type information for Rust structs and enums"
 keywords = ["openapi", "type"]
 license = "Apache-2.0"
diff --git a/README.j2 b/README.j2
index 6336eff41..ae47cd534 100644
--- a/README.j2
+++ b/README.j2
@@ -9,8 +9,8 @@
 	<a href="https://msrd0.github.io/openapi_type/doc/openapi_type/index.html">
 		<img alt="rustdoc" src="https://img.shields.io/badge/docs-main-blue.svg"/>
 	</a>
-    <a href="https://blog.rust-lang.org/2022/04/07/Rust-1.60.0.html">
-        <img alt="Rust 1.60+" src="https://img.shields.io/badge/rustc-1.60+-orange.svg"/>
+    <a href="https://blog.rust-lang.org/2023/06/01/Rust-1.70.0.html">
+        <img alt="Rust 1.70+" src="https://img.shields.io/badge/rustc-1.70+-orange.svg"/>
     </a>
 	<a href="https://www.apache.org/licenses/LICENSE-2.0">
 		<img alt="License Apache-2.0" src="https://img.shields.io/badge/license-Apache--2.0-blue.svg"/>
diff --git a/crates-io.j2 b/crates-io.j2
index dea61abc8..9e0fd7871 100644
--- a/crates-io.j2
+++ b/crates-io.j2
@@ -1,4 +1,4 @@
-# openapi_type [![Rust 1.60+](https://img.shields.io/badge/rustc-1.60+-orange.svg)](https://blog.rust-lang.org/2022/04/07/Rust-1.60.0.html) [![License Apache-2.0](https://img.shields.io/badge/license-Apache--2.0-blue.svg)](https://www.apache.org/licenses/LICENSE-2.0) [![GitHub](https://img.shields.io/badge/Code-On%20Github-blue?logo=GitHub)](https://github.com/msrd0/openapi_type)
+# openapi_type [![Rust 1.70+](https://img.shields.io/badge/rustc-1.70+-orange.svg)](https://blog.rust-lang.org/2023/06/01/Rust-1.70.0.html) [![License Apache-2.0](https://img.shields.io/badge/license-Apache--2.0-blue.svg)](https://www.apache.org/licenses/LICENSE-2.0) [![GitHub](https://img.shields.io/badge/Code-On%20Github-blue?logo=GitHub)](https://github.com/msrd0/openapi_type)
 
 {{ readme }}
 
diff --git a/tests/fail/not_openapitype.stderr b/tests/fail/not_openapitype.stderr
index 5e5592fa1..a9f0bed9a 100644
--- a/tests/fail/not_openapitype.stderr
+++ b/tests/fail/not_openapitype.stderr
@@ -5,12 +5,12 @@ error[E0277]: the trait bound `Bar: OpenapiType` is not satisfied
   |          ^^^ the trait `OpenapiType` is not implemented for `Bar`
   |
   = help: the following other types implement trait `OpenapiType`:
-            &'a T
-            ()
-            BTreeMap<K, V>
-            BTreeSet<T>
-            CStr
-            CString
-            Foo
-            HashMap<K, V, S>
+            bool
+            char
+            isize
+            i8
+            i16
+            i32
+            i64
+            i128
           and $N others
diff --git a/tests/fail/not_openapitype_generics.stderr b/tests/fail/not_openapitype_generics.stderr
index 079deae6e..4439553ca 100644
--- a/tests/fail/not_openapitype_generics.stderr
+++ b/tests/fail/not_openapitype_generics.stderr
@@ -2,10 +2,7 @@ error[E0599]: the function or associated item `schema` exists for struct `Foo<Ba
   --> tests/fail/not_openapitype_generics.rs:11:14
    |
 4  | struct Foo<T> {
-   | -------------
-   | |
-   | function or associated item `schema` not found for this struct
-   | doesn't satisfy `Foo<Bar>: OpenapiType`
+   | ------------- function or associated item `schema` not found for this struct because it doesn't satisfy `Foo<Bar>: OpenapiType`
 ...
 8  | struct Bar;
    | ---------- doesn't satisfy `Bar: OpenapiType`