diff --git a/Cargo.toml b/Cargo.toml
index 604df2968ee..8a9d9b7602d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -59,7 +59,7 @@ strip-ansi-escapes = "0.1.0"
 tar = { version = "0.4.18", default-features = false }
 tempfile = "3.0"
 termcolor = "1.0"
-toml = "0.5.0"
+toml = "0.5.3"
 url = { version = "2.0", features = ['serde'] }
 walkdir = "2.2"
 clap = "2.31.2"
diff --git a/tests/testsuite/bad_config.rs b/tests/testsuite/bad_config.rs
index e6dd6610ece..ccc318e969e 100644
--- a/tests/testsuite/bad_config.rs
+++ b/tests/testsuite/bad_config.rs
@@ -222,7 +222,7 @@ Caused by:
   could not parse input as TOML
 
 Caused by:
-  expected an equals, found eof at line 1
+  expected an equals, found eof at line 1 column 2
 ",
         )
         .run();
@@ -465,7 +465,7 @@ Caused by:
   could not parse input as TOML
 
 Caused by:
-  expected a table key, found a newline at line 8
+  expected a table key, found a newline at line 8 column 23
 ",
         )
         .run();
diff --git a/tests/testsuite/build.rs b/tests/testsuite/build.rs
index c80e528dfae..b351c2cf102 100644
--- a/tests/testsuite/build.rs
+++ b/tests/testsuite/build.rs
@@ -188,7 +188,7 @@ Caused by:
   could not parse input as TOML
 
 Caused by:
-  invalid number at line 3
+  invalid number at line 3 column 19
 ",
         )
         .run();
@@ -208,7 +208,7 @@ Caused by:
   could not parse input as TOML
 
 Caused by:
-  invalid number at line 1
+  invalid number at line 1 column 5
 ",
         )
         .run();
@@ -2274,7 +2274,7 @@ Caused by:
   could not parse input as TOML
 
 Caused by:
-  expected an equals, found an identifier at line 1
+  expected an equals, found an identifier at line 1 column 6
 ",
         )
         .run();
diff --git a/tests/testsuite/config.rs b/tests/testsuite/config.rs
index 01f79271a92..5f3cd76c38b 100644
--- a/tests/testsuite/config.rs
+++ b/tests/testsuite/config.rs
@@ -439,7 +439,7 @@ Caused by:
 Caused by:
   could not parse input as TOML
 Caused by:
-  expected an equals, found eof at line 1",
+  expected an equals, found eof at line 1 column 5",
     );
 }
 
@@ -517,7 +517,7 @@ expected a list, but found a integer for `l3` in [..]/.cargo/config",
     assert_error(
         config.get::<L>("bad-env").unwrap_err(),
         "error in environment variable `CARGO_BAD_ENV`: \
-         could not parse TOML list: invalid number at line 1",
+         could not parse TOML list: invalid number at line 1 column 10",
     );
 
     // Try some other sequence-like types.
diff --git a/tests/testsuite/git.rs b/tests/testsuite/git.rs
index 9762ea9c95c..1e62ef0dfb2 100644
--- a/tests/testsuite/git.rs
+++ b/tests/testsuite/git.rs
@@ -2439,7 +2439,7 @@ fn invalid_git_dependency_manifest() {
              could not parse input as TOML\n\
              \n\
              Caused by:\n  \
-             duplicate key: `categories` for key `project`",
+             duplicate key: `categories` for key `project` at line 10 column 17",
             path2url(&git_root),
             path2url(&git_root),
         ))
diff --git a/tests/testsuite/workspaces.rs b/tests/testsuite/workspaces.rs
index 35ec7a52e75..3722fa12b87 100644
--- a/tests/testsuite/workspaces.rs
+++ b/tests/testsuite/workspaces.rs
@@ -1001,7 +1001,7 @@ failed to parse manifest at `[..]foo/Cargo.toml`
 Caused by:
   could not parse input as TOML
 Caused by:
-  expected an equals, found eof at line 1
+  expected an equals, found eof at line 1 column 5
      Created binary (application) `bar` package
 ",
         )