diff --git a/crates/uv-platform-tags/src/abi_tag.rs b/crates/uv-platform-tags/src/abi_tag.rs
index 2ea5c872e..70b11d8c2 100644
--- a/crates/uv-platform-tags/src/abi_tag.rs
+++ b/crates/uv-platform-tags/src/abi_tag.rs
@@ -34,7 +34,7 @@ pub enum AbiTag {
         python_version: Option<(u8, u8)>,
         implementation_version: (u8, u8),
     },
-    /// Ex) `graalpy310_graalpy240_310_native`
+    /// Ex) `graalpy240_310_native`
     GraalPy {
         python_version: (u8, u8),
         implementation_version: (u8, u8),
@@ -109,7 +109,7 @@ impl std::fmt::Display for AbiTag {
             } => {
                 write!(
                     f,
-                    "graalpy{py_major}{py_minor}_graalpy{impl_major}{impl_minor}_{py_major}{py_minor}_native"
+                    "graalpy{impl_major}{impl_minor}_{py_major}{py_minor}_native"
                 )
             }
             Self::Pyston {
@@ -237,29 +237,21 @@ impl FromStr for AbiTag {
                 })
             }
         } else if let Some(rest) = s.strip_prefix("graalpy") {
-            // Ex) `graalpy310_graalpy240_310_native`
-            let version_end = rest
-                .find('_')
-                .ok_or_else(|| ParseAbiTagError::InvalidFormat {
-                    implementation: "GraalPy",
-                    tag: s.to_string(),
-                })?;
-            let version_str = &rest[..version_end];
-            let (major, minor) = parse_python_version(version_str, "GraalPy", s)?;
-            let rest = rest[version_end + 1..]
-                .strip_prefix("graalpy")
-                .ok_or_else(|| ParseAbiTagError::InvalidFormat {
-                    implementation: "GraalPy",
-                    tag: s.to_string(),
-                })?;
-            let version_end = rest
-                .find('_')
-                .ok_or_else(|| ParseAbiTagError::InvalidFormat {
-                    implementation: "GraalPy",
-                    tag: s.to_string(),
-                })?;
-            let rest = &rest[..version_end];
-            let (impl_major, impl_minor) = parse_impl_version(rest, "GraalPy", s)?;
+            // Ex) `graalpy240_310_native`
+            let (impl_ver_str, rest) =
+                rest.split_once('_')
+                    .ok_or_else(|| ParseAbiTagError::InvalidFormat {
+                        implementation: "GraalPy",
+                        tag: s.to_string(),
+                    })?;
+            let (impl_major, impl_minor) = parse_impl_version(impl_ver_str, "GraalPy", s)?;
+            let (py_ver_str, _) =
+                rest.split_once('_')
+                    .ok_or_else(|| ParseAbiTagError::InvalidFormat {
+                        implementation: "GraalPy",
+                        tag: s.to_string(),
+                    })?;
+            let (major, minor) = parse_python_version(py_ver_str, "GraalPy", s)?;
             Ok(Self::GraalPy {
                 python_version: (major, minor),
                 implementation_version: (impl_major, impl_minor),
@@ -434,11 +426,8 @@ mod tests {
             python_version: (3, 10),
             implementation_version: (2, 40),
         };
-        assert_eq!(
-            AbiTag::from_str("graalpy310_graalpy240_310_native"),
-            Ok(tag)
-        );
-        assert_eq!(tag.to_string(), "graalpy310_graalpy240_310_native");
+        assert_eq!(AbiTag::from_str("graalpy240_310_native"), Ok(tag));
+        assert_eq!(tag.to_string(), "graalpy240_310_native");
 
         assert_eq!(
             AbiTag::from_str("graalpy310"),
diff --git a/crates/uv-platform-tags/src/tags.rs b/crates/uv-platform-tags/src/tags.rs
index 2a85a3114..22ad12dbf 100644
--- a/crates/uv-platform-tags/src/tags.rs
+++ b/crates/uv-platform-tags/src/tags.rs
@@ -395,7 +395,7 @@ impl Implementation {
                 python_version: Some(python_version),
                 implementation_version,
             },
-            // Ex) `graalpy310_graalpy240_310_native
+            // Ex) `graalpy240_310_native
             Self::GraalPy => AbiTag::GraalPy {
                 python_version,
                 implementation_version,
diff --git a/crates/uv-python/python/get_interpreter_info.py b/crates/uv-python/python/get_interpreter_info.py
index c134a0a6b..2b1ee09cc 100644
--- a/crates/uv-python/python/get_interpreter_info.py
+++ b/crates/uv-python/python/get_interpreter_info.py
@@ -34,8 +34,18 @@ if sys.version_info[0] < 3:
     sys.exit(0)
 
 if hasattr(sys, "implementation"):
-    implementation_version = format_full_version(sys.implementation.version)
     implementation_name = sys.implementation.name
+    if implementation_name == "graalpy":
+        # GraalPy reports the CPython version as sys.implementation.version,
+        # so we need to discover the GraalPy version from the cache_tag
+        import re
+        implementation_version = re.sub(
+            r"graalpy(\d)(\d+)-\d+",
+            r"\1.\2",
+            sys.implementation.cache_tag
+        )
+    else:
+        implementation_version = format_full_version(sys.implementation.version)
 else:
     implementation_version = "0"
     implementation_name = ""
diff --git a/crates/uv/tests/it/common/mod.rs b/crates/uv/tests/it/common/mod.rs
index 6ff533cad..f7b0a0b62 100644
--- a/crates/uv/tests/it/common/mod.rs
+++ b/crates/uv/tests/it/common/mod.rs
@@ -32,7 +32,7 @@ use uv_static::EnvVars;
 // Exclude any packages uploaded after this date.
 static EXCLUDE_NEWER: &str = "2024-03-25T00:00:00Z";
 
-pub const PACKSE_VERSION: &str = "0.3.45";
+pub const PACKSE_VERSION: &str = "0.3.46";
 
 /// Using a find links url allows using `--index-url` instead of `--extra-index-url` in tests
 /// to prevent dependency confusion attacks against our test suite.
diff --git a/crates/uv/tests/it/pip_install_scenarios.rs b/crates/uv/tests/it/pip_install_scenarios.rs
index fa422c466..41008cdb4 100644
--- a/crates/uv/tests/it/pip_install_scenarios.rs
+++ b/crates/uv/tests/it/pip_install_scenarios.rs
@@ -4091,7 +4091,7 @@ fn no_sdist_no_wheels_with_matching_abi() {
       ╰─▶ Because only package-a==1.0.0 is available and package-a==1.0.0 has no wheels with a matching Python ABI tag (e.g., `cp38`), we can conclude that all versions of package-a cannot be used.
           And because you require package-a, we can conclude that your requirements are unsatisfiable.
 
-          hint: You require CPython 3.8 (`cp38`), but we only found wheels for `package-a` (v1.0.0) with the following Python ABI tag: `graalpy310_graalpy240_310_native`
+          hint: You require CPython 3.8 (`cp38`), but we only found wheels for `package-a` (v1.0.0) with the following Python ABI tag: `graalpy240_310_native`
     "###);
 
     assert_not_installed(