diff --git a/.changeset/modern-kids-joke.md b/.changeset/modern-kids-joke.md
new file mode 100644
index 000000000..f5939c59b
--- /dev/null
+++ b/.changeset/modern-kids-joke.md
@@ -0,0 +1,5 @@
+---
+"@effect/schema": patch
+---
+
+fix regexp for numeric template literals
diff --git a/src/Arbitrary.ts b/src/Arbitrary.ts
index 9225b535b..6e307a28c 100644
--- a/src/Arbitrary.ts
+++ b/src/Arbitrary.ts
@@ -118,9 +118,13 @@ export const go = (ast: AST.AST, constraints?: Constraints): Arbitrary<any> => {
       return (fc) => fc.oneof(fc.object(), fc.array(fc.anything()))
     case "TemplateLiteral": {
       return (fc) => {
-        const components = [fc.constant(ast.head)]
+        const components: Array<FastCheck.Arbitrary<string | number>> = [fc.constant(ast.head)]
         for (const span of ast.spans) {
-          components.push(fc.string({ maxLength: 5 }))
+          if (AST.isStringKeyword(span.type)) {
+            components.push(fc.string({ maxLength: 5 }))
+          } else {
+            components.push(fc.float({ noDefaultInfinity: true }))
+          }
           components.push(fc.constant(span.literal))
         }
         return fc.tuple(...components).map((spans) => spans.join(""))
diff --git a/src/Parser.ts b/src/Parser.ts
index 177f43527..d2b1c8bf4 100644
--- a/src/Parser.ts
+++ b/src/Parser.ts
@@ -1062,7 +1062,7 @@ const getTemplateLiteralRegex = (ast: AST.TemplateLiteral): RegExp => {
     if (AST.isStringKeyword(span.type)) {
       pattern += ".*"
     } else if (AST.isNumberKeyword(span.type)) {
-      pattern += "-?\\d+(\\.\\d+)?"
+      pattern += "[+-]?\\d*\\.?\\d+(?:[Ee][+-]?\\d+)?"
     }
     pattern += span.literal
   }
diff --git a/test/Arbitrary/Arbitrary.test.ts b/test/Arbitrary/Arbitrary.test.ts
index 1665175f5..68ee300e2 100644
--- a/test/Arbitrary/Arbitrary.test.ts
+++ b/test/Arbitrary/Arbitrary.test.ts
@@ -63,6 +63,11 @@ describe("Arbitrary/Arbitrary", () => {
     propertyTo(schema)
   })
 
+  it("templateLiteral. a${number}", () => {
+    const schema = S.templateLiteral(S.literal("a"), S.number)
+    propertyTo(schema)
+  })
+
   it("templateLiteral. a", () => {
     const schema = S.templateLiteral(S.literal("a"))
     propertyTo(schema)
diff --git a/test/Schema/templateLiteral.test.ts b/test/Schema/templateLiteral.test.ts
index a83c836e9..45d1f2bc1 100644
--- a/test/Schema/templateLiteral.test.ts
+++ b/test/Schema/templateLiteral.test.ts
@@ -104,8 +104,22 @@ describe("Schema/templateLiteral", () => {
 
     it("a${number}", async () => {
       const schema = S.templateLiteral(S.literal("a"), S.number)
-      await Util.expectParseSuccess(schema, "a1", "a1")
-      await Util.expectParseSuccess(schema, "a1.2", "a1.2")
+      await Util.expectParseSuccess(schema, "a1")
+      await Util.expectParseSuccess(schema, "a1.2")
+
+      await Util.expectParseSuccess(schema, "a-1.401298464324817e-45")
+      await Util.expectParseSuccess(schema, "a1.401298464324817e-45")
+      await Util.expectParseSuccess(schema, "a+1.401298464324817e-45")
+      await Util.expectParseSuccess(schema, "a-1.401298464324817e+45")
+      await Util.expectParseSuccess(schema, "a1.401298464324817e+45")
+      await Util.expectParseSuccess(schema, "a+1.401298464324817e+45")
+
+      await Util.expectParseSuccess(schema, "a-1.401298464324817E-45")
+      await Util.expectParseSuccess(schema, "a1.401298464324817E-45")
+      await Util.expectParseSuccess(schema, "a+1.401298464324817E-45")
+      await Util.expectParseSuccess(schema, "a-1.401298464324817E+45")
+      await Util.expectParseSuccess(schema, "a1.401298464324817E+45")
+      await Util.expectParseSuccess(schema, "a+1.401298464324817E+45")
 
       await Util.expectParseFailure(
         schema,