diff --git a/harper-core/src/language_detection.rs b/harper-core/src/language_detection.rs
index 2c837850..fff66045 100644
--- a/harper-core/src/language_detection.rs
+++ b/harper-core/src/language_detection.rs
@@ -106,7 +106,7 @@ mod tests {
     #[test]
     fn detects_python_fib() {
         assert_not_english(
-            r#"
+            r"
 def fibIter(n):
     if n < 2:
         return n
@@ -115,7 +115,7 @@ def fibIter(n):
     for _ in range(2, n):
         fibPrev, fib = fib, fib + fibPrev
     return fib
-        "#,
+        ",
         );
     }
 
diff --git a/harper-core/src/lexing/email_address.rs b/harper-core/src/lexing/email_address.rs
index c034f337..df2eb20a 100644
--- a/harper-core/src/lexing/email_address.rs
+++ b/harper-core/src/lexing/email_address.rs
@@ -109,23 +109,23 @@ mod tests {
 
     fn example_local_parts() -> impl Iterator<Item = Vec<char>> {
         [
-            r#"simple"#,
-            r#"very.common"#,
-            r#"x"#,
-            r#"long.email-address-with-hyphens"#,
-            r#"user.name+tag+sorting"#,
-            r#"name/surname"#,
-            r#"admin"#,
-            r#"example"#,
+            r"simple",
+            r"very.common",
+            r"x",
+            r"long.email-address-with-hyphens",
+            r"user.name+tag+sorting",
+            r"name/surname",
+            r"admin",
+            r"example",
             r#"" ""#,
             r#""john..doe""#,
-            r#"mailhost!username"#,
+            r"mailhost!username",
             r#""very.(),:;<>[]\".VERY.\"very@\\ \"very\".unusual""#,
-            r#"user%example.com"#,
-            r#"user-"#,
-            r#"postmaster"#,
-            r#"postmaster"#,
-            r#"_test"#,
+            r"user%example.com",
+            r"user-",
+            r"postmaster",
+            r"postmaster",
+            r"_test",
         ]
         .into_iter()
         .map(|s| s.chars().collect())
diff --git a/harper-core/src/lexing/hostname.rs b/harper-core/src/lexing/hostname.rs
index 7897373b..6a130726 100644
--- a/harper-core/src/lexing/hostname.rs
+++ b/harper-core/src/lexing/hostname.rs
@@ -25,20 +25,20 @@ pub mod tests {
 
     pub fn example_domain_parts() -> impl Iterator<Item = Vec<char>> {
         [
-            r#"example.com"#,
-            r#"example.com"#,
-            r#"example.com"#,
-            r#"and.subdomains.example.com"#,
-            r#"example.com"#,
-            r#"example.com"#,
-            r#"example"#,
-            r#"s.example"#,
-            r#"example.org"#,
-            r#"example.org"#,
-            r#"example.org"#,
-            r#"strange.example.com"#,
-            r#"example.org"#,
-            r#"example.org"#,
+            r"example.com",
+            r"example.com",
+            r"example.com",
+            r"and.subdomains.example.com",
+            r"example.com",
+            r"example.com",
+            r"example",
+            r"s.example",
+            r"example.org",
+            r"example.org",
+            r"example.org",
+            r"strange.example.com",
+            r"example.org",
+            r"example.org",
         ]
         .into_iter()
         .map(|s| s.chars().collect())
diff --git a/harper-core/src/parsers/markdown.rs b/harper-core/src/parsers/markdown.rs
index 89ed098b..cc5331fd 100644
--- a/harper-core/src/parsers/markdown.rs
+++ b/harper-core/src/parsers/markdown.rs
@@ -264,7 +264,7 @@ mod tests {
 
     #[test]
     fn survives_emojis() {
-        let source = r#"🤷."#;
+        let source = r"🤷.";
 
         Markdown.parse_str(source);
     }
@@ -284,7 +284,7 @@ mod tests {
 
     #[test]
     fn math_becomes_unlintable() {
-        let source = r#"$\Katex$ $\text{is}$ $\text{great}$."#;
+        let source = r"$\Katex$ $\text{is}$ $\text{great}$.";
 
         let tokens = Markdown.parse_str(source);
         assert_eq!(
@@ -302,7 +302,7 @@ mod tests {
 
     #[test]
     fn hidden_wikilink_text() {
-        let source = r#"[[this is hidden|this is not]]"#;
+        let source = r"[[this is hidden|this is not]]";
 
         let tokens = Markdown.parse_str(source);
 
@@ -322,7 +322,7 @@ mod tests {
 
     #[test]
     fn improper_wikilink_text() {
-        let source = r#"this is shown|this is also shown]]"#;
+        let source = r"this is shown|this is also shown]]";
 
         let tokens = Markdown.parse_str(source);
 
@@ -354,7 +354,7 @@ mod tests {
 
     #[test]
     fn normal_wikilink() {
-        let source = r#"[[Wikilink]]"#;
+        let source = r"[[Wikilink]]";
         let tokens = Markdown.parse_str(source);
         let token_kinds = tokens.iter().map(|t| t.kind).collect::<Vec<_>>();
 
@@ -365,7 +365,7 @@ mod tests {
 
     #[test]
     fn html_is_unlintable() {
-        let source = r#"The range of inputs from <ctrl-g> to ctrl-z"#;
+        let source = r"The range of inputs from <ctrl-g> to ctrl-z";
         let tokens = Markdown.parse_str(source);
         assert_eq!(tokens.iter_unlintables().count(), 1);
     }